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part 13 - kidney and urinary tract
yanivfenig
241
Medical
Graduate
10/02/2012

Additional Medical Flashcards

 


 

Cards

Term
which drug may damage the small vessels to cause acute kidney injury
Definition
calcineurin inhibitors - cyclosporine
Term
2 endogenous causes of Toxic ATN to cause acute kidney injury
Definition
rhabdomyolysis, hemolysis
Term
3 drugs to cause Toxic ATN and acute kidney injury
Definition
cisplatin, gentamicin, contrast
Term
5 types of Abx that may cause acute renal injury by interstitial nephritis
Definition
penicillins, cephalosporins, quinolones, sulfonamides, and rifampin
Term
what are the urine findings in prerenal azotemia
Definition
FeNa <1%, hyaline casts in urine sediment
Term
3 electrolyte disturbances associated with tumor lysis syndrome
Definition
Hyperphosphatemia, hypocalcemia, hyperuricemia
Term
4 drugs which may cause nephrotoxigenic AKI
Definition
Aminoglycoside antibiotics, cisplatin, tenofovir, zoledronate
Term
urine findings nephrotoxigenic AKI
Definition
granular casts, tubular epithelial cell casts. FeNa typically >1%.
Term
urine findings in interstitial nephritis AKI
Definition
Eosinophilia, sterile pyuria
Term
2 causes of interstitial nephritis AKI that are not drug related
Definition
tubulointerstitial nephritis-uveitis (TINU) syndrome, Legionella infection
Term
2 triggers of TTP/HUS induced AKI
Definition
Recent GI infection or use of calcineurin inhibitors
Term
what is a skin manifestation associated with thromboembolic induced AKI
Definition
livedo reticularis
Term
a finding in serum and another finding in urine typical of atheroembolic induced AKI
Definition
hypocomplementia, eosinophiluria
Term
Complete anuria early in the course of AKI is uncommon except in the following situations
Definition
complete urinary tract obstruction, renal artery occlusion, overwhelming septic shock, severe ischemia (often with cortical necrosis), or severe proliferative glomerulonephritis or vasculitis
Term
4 drugs which demonstrate crystaluria in acute kidney injury
Definition
acyclovir, indinavir, sulfa, amoxicillin
Term
when should sodium bicarbonate be administered in the setting of acute kidney injury
Definition
if pH <7.2 to keep serum bicarbonate >15 mmol/L
Term
what is a treatment to consider in rhabdomyolysis induced AKI
Definition
alkaline diuresis
Term
cockcroft equation for estimated creatinine clearance
Definition
Estimated creatinine clearance (mL/min)

= (140–age) x body weight (kg)

72 x PCr (mg/dL)
Term
4 leading causes of chronic kidney disease
Definition
Diabetic glomerular disease

Glomerulonephritis

Hypertensive nephropathy

Autosomal dominant polycystic kidney disease
Term
what is Calciphylaxis
Definition
seen in CKD. ischemic necrosis of the skin d/t vascular calcification. seen in patients who are on dialysis and warfarin (the latter blocks GLP, which protects vessels from calcification)
Term
8 reasons for anemia in CKD
Definition
Relative deficiency of erythropoietin

Diminished red blood cell survival

Bleeding diathesis

Iron deficiency

Hyperparathyroidism/bone marrow fibrosis

"Chronic inflammation"

Folate or vitamin B12 deficiency

Hemoglobinopathy
Term
what is a GI phenomenon in CKD
Definition
Uremic fetor - a urine-like odor on the breath, derives from the breakdown of urea to ammonia in saliva
Term
endocrine abnormality in females with CKD
Definition
low estrogen levels - elevated rates of fetal loss
Term
a skin manifestation seen in patients with CKD who have been exposed to gadelinium
Definition
nephrogenic fibrosing dermopathy - induration of skin on arms and legs
Term
5 CIs to renal biopsy in CKD
Definition
bilaterally small kidneys, uncontrolled hypertension, active urinary tract infection, bleeding diathesis (including ongoing anticoagulation), and severe obesity
Term
clues that help determine chronicity vs. an acute process (CKD)
Definition
metabolic bone disease with hyperphosphatemia, hypocalcemia, and elevated PTH and bone alkaline phosphatase, Normochromic-normocytic anemia, bilaterally reduced kidney size (<8.5 cm)
Term
what is the most common acute complication of hemodialysis
Definition
Hypotension, particularly among patients with diabetes mellitus
Term
3 complications of dialysis for ESRD
Definition
hypotension
anaphylactic reaction
muscle cramps
Term
complications of peritoneal dialysis
Definition
peritonitis, catheter-associated nonperitonitis infections, weight gain, hypoproteinemia, hypertrigliceridemia, hyperglycemia
Term
what should be the immunosuppressive treatment immediately after kidney transplantation? what should be avoided
Definition
Cyclosporine therapy prolongs ATN, and some patients do not diurese until the dose is reduced drastically. Many centers avoid starting cyclosporine for the first several days, using ALG or a monoclonal antibody along with mycophenolic acid and prednisone until renal function is established
Term
what treatment is mandatory in the first 48 hrs post kidney transplatation
Definition
hemodialysis
Term
what is the role of ACEi and NSAIDs in the kidney transplanted patient
Definition
ACEi can be initiated several months post-op, where as NSAIDs should be avoided altogether
Term
what is the initial treatment for the first kidney rejection episode
Definition
methylprednisolone, for 3 days
Term
first episode of rejection: if methylprednisolone fails to aleviate the rejection process
Definition
antibody therapy: OKT3 or antithymocyte globulin
Term
what is the next course of action in rejection if methylprednisolone and OKT3/antithymocyte globulin fail?
Definition
renal Bx
Term
in kidney rejection, if renal Bx demonstrates an antibody-mediated injury, what is the course of action
Definition
plasmapheresis, immunoglobulin infusions, or anti-CD20 monoclonal antibody (rituximab)
Term
The Most Common Opportunistic Infections in Renal Transplant Recipients during the Peritransplant (<1 month) period
Definition
Bacterial infections

Wound infections

Herpesvirus

Oral candidiasis

Urinary tract infection
Term
The Most Common Opportunistic Infections in Renal Transplant Recipients during the Early (1–6 months) period
Definition
Pneumocystis carinii

Cytomegalovirus

Legionella Listeria

Hepatitis B

Hepatitis C
Term
The Most Common Opportunistic Infections in Renal Transplant Recipients during the Late (>6 months) period
Definition
Aspergillus Nocardia

BK virus (polyoma)

Herpes zoster

Hepatitis B

Hepatitis C
Term
what is a feared complication in the immediate post op period of kidney transplantation
Definition
rapidly occurring pulmonary lesions, which may result in death within 5 days of onset - stop immunosuppression
Term
5 absolute Indications for Corticosteroids and Immunosuppressives in Interstitial Nephritis
Definition
Sjögren's syndrome
Sarcoidosis
SLE interstitial nephritis
Adults with TINU
Idiopathic and other granulomatous interstitial nephritis
Term
4 relative Indications for Corticosteroids and Immunosuppressives in Interstitial Nephritis
Definition
Drug-induced or idiopathic AIN with:

Rapid progression of renal failure

Diffuse infiltrates on biopsy

Impending need for dialysis

Children with TINU
Term
The classic presentation of AIN
Definition
fever, rash, peripheral eosinophilia, and oliguric renal failure occurring after 7–10 days of treatment with methicillin or another b-lactam antibiotic is the exception rather than the rule
Term
acute interstitial nephritis most commonly (and not classically) presents with...
Definition
a rising serum creatinine or symptoms attributable to acute renal failure
Term
when is a renal Bx indicated in suspected acute interstitial nephritis?
Definition
when presenting signs are atypical and no remission after 1 wk of conservative therapy
Term
what are the 3 main causes of papillary necrosis
Definition
Analgesic nephropathy
Sickle cell nephropathy
Diabetes with urinary tract infection
Term
what is the treatment of lithium induced nephropathy
Definition
amiloride
Term
3 conditions that through obstruction of the ureters may cause acute interstitial nephritis
Definition
Light chain cast nephropathy ("myeloma kidney")
Acute phosphate nephropathy
Acute urate nephropathy
Term
5 drugs/agents that through chronic exposure may cause acute interstitial nephritis
Definition
Analgesics, especially those containing phenacetin

Lithium

Heavy metals (lead, cadmium)

Aristolochic acid (Chinese herbal and Balkan endemic nephropathies)

Calcineurin inhibitors (cyclosporine, tacrolimus)
Term
5 metabolic abnormalities that may cause acute interstitial nephritis
Definition
Hypercalcemia and/or nephrocalcinosis
Hyperuricemia
Prolonged hypokalemia
Hyperoxaluria
Cystinosis (see Chap. 284
Term
4 hereditary conditions that may cause acute interstitial nephritis
Definition
Polycystic kidney disease
Nephronophthisis
Adult medullary cystic disease
Medullary sponge kidney
Term
what are the 2 imaging tests to determine amount of blood flow to each kidney
Definition
Captopril renography with technetium 99mTc mertiatide (99mTc MAG3

Nuclear imaging with technetium mertiatide or technetium-labeled pentetic acid (DTPA
Term
which is the best imaging modality to demonstrate the renal arteries if implanted with a stent
Definition
CT angio
Term
5 Factors Favoring Medical Therapy and Revascularization for Renal Artery Stenosis
Definition
Progressive decline in GFR during treatment of systemic hypertension

Failure to achieve adequate blood pressure control with optimal medical therapy (medical failure)

Rapid or recurrent decline in the GFR in association with a reduction in systemic pressure

Decline in the GFR during therapy with ACE inhibitors or ARBs

Recurrent congestive heart failure in a patient in whom the adequacy of left ventricular function does not explain a cause
Term
6 Factors Favoring Medical Therapy and Surveillance of Renal Artery Disease
Definition
Controlled blood pressure with stable renal function (e.g., stable renal insufficiency)

Stable renal artery stenosis without progression on surveillance studies (e.g., serial duplex ultrasound)

Very advanced age and/or limited life expectancy

Extensive comorbidity that make revascularization too risky

High risk for or previous experience with atheroembolic disease

Other concomitant renal parenchymal diseases that cause progressive renal dysfunction (e.g., interstitial nephritis, diabetic nephropathy)
Term
atheroembolic disease usually manifests itself after a precipitating factor, such as...
Definition
angiography, vascular surgery, anticoagulation with heparin, thrombolytic therapy, or trauma
Term
7 Criteria for Establishing Microangiopathic Kidney Injury Associated with Hematopoietic Stem Cell Transplantation
Definition
RBC fragmentation and at least 2 schistocytes per high-power field

De novo, prolonged, or progressive thrombocytopenia

A sudden and persistent increase in LDH

Negative direct and indirect Coombs test

Decrease in hemoglobin or increased RBC transfusion requirement

Concurrent renal and/or neurologic dysfunction without other explanations

Decrease in haptoglobin concentration
Term
8 conditions that cause Thrombotic Microangiopathy injury to the kidney
Definition
HUS/TTP

Transplantation-Associated Thrombotic Microangiopathy

HIV-Related Tma

Radiation Nephropathy

Scleroderma (Progressive Systemic Sclerosis)

Antiphospholipid Syndrome (Aps)

HELLP Syndrome

Sickle Cell Nephropathy
Term
colonization of the vagina with e.coli is a risk factor for developing UTI in females. what seems to affect the risk of e.coli colonization?
Definition
sex

old age - less lactobacilli more gram neg

Nonoxynol-9 in spermicide is toxic to the normal vaginal microflora
Term
3 conditions that require treatment for asymptomatic bacteriurea
Definition
pregnancy, underwent renal transplantation, will undergo invasive urological treatment
Term
what should be considered in a male with recurrent urinary symptoms? what should be done?
Definition
chronic bacterial prostatitis

mears-stamey test (4 urine samples right after prostate massage)
Term
what are 3 strategies for UTI prophylaxis in females? 3 drug options
Definition
continuous, postcoital, or patient-initiated therapy

TMP-SMX, a fluoroquinolone, or nitrofurantoin
Term
what is the treatment of renal artery stenosis
Definition
stable blood pressure and then angiography or maintain medical therapy
ARBs, ACEi allowed
Term
major causes of intrinsic acute kidney injury
Definition
ATN; DIC; hypertensive nephropathy; MTX, penicillin; TTP/HUS; TINU, renal artery dissection, thromboembolism, thrombosis, and renal vein compression or thrombosis
Term
nephrotic syndrome may present with hypercholesterolemia
Definition
Term
patients with normal anion gap acidosis have hyperchloremia
Definition
Term
6 groups of drugs that can cause hyperkalemia and renal insufficiency, and thus normal anion gap acidosis
Definition
A. Potassium-sparing diuretics (amiloride, triamterene, spironolactone)

B. Trimethoprim

C. Pentamidine

D. ACE-Is and ARBs

E. Nonsteroidal anti-inflammatory drugs

F. Cyclosporine and tacrolimus
Term
2 drugs that may cause distal renal tubular acidosis type 1, which in its turn causes normal gap metabolic acidosis
Definition
amphotericin B, ifosfamide
Term
2 drugs that may cause proximal renal tubular acidosis type 2, which in its turn causes normal gap metabolic acidosis
Definition
acetazolamide, topiramate
Term
what is the treatment of infected kidney or liver cyst in ADPKD?
Definition
Resprim and for the pain cyst drainage by percutaneous aspiration
Term
what is the treatment of ADPKD?
Definition
No treatment has been proved to prevent cyst growth or the decline in kidney function. the goal is to keep BP at 130/80 using ACEi or ARBs
Term
a patient with acute kidney injury and the following clinical findings: retinal plaques, palpable purpura, livedo reticularis, GI bleed. what is the cause of the kidney injury and what are some lab findings
Definition
thromboembolic disease
Hypocomplementemia, eosinophiluria (variable), variable amounts of proteinuria
Term
causes of secondary membranous glomerulonephritis?
Definition
malignancy (solid tumors of the breast, lung, colon), infection (hepatitis B, malaria, schistosomiasis), or rheumatologic disorders like lupus or rarely rheumatoid arthritis
Term
causes of secondary FSGS?
Definition
Viruses: HIV/Hepatitis B/Parvovirus

Hypertensive nephropathy

Reflux nephropathy

Cholesterol emboli

Drugs: Heroin/analgesics/pamidronate

Renal dysgenesis

Alport's syndrome

Sickle cell disease

Lymphoma

Radiation nephritis
Term
what is the workup of suspected goodpasture's syndrome
Definition
renal biopsy (anti GBM)
Term
risk factors for contrast nephropathy
Definition
CHF, DM, MM, dehydration, old age
Term
what is the treatment of ethylene glycol intoxication - high AG metabolic acidosis and high osmolal gap?
Definition
saline or osmotic diuresis, thiamine and pyridoxine supplements, fomepizole or ethanol, and hemodialysis
Term
when is hemodialysis indicated in ethylene glycol intoxication
Definition
arterial pH is <7.3, or the osmolar gap exceeds 20 mOsm/kg
Term
what is the treatment of metabolic acidosis d/t renal failure, whether hyperchloremic or uremic?
Definition
correct bicarbonate to 20-24 and if hyperkalemia, give fusid
Term
which cystic kidney disease is associated with retinal pigmentation
Definition
nephronophtisis I
Term
which cystic kidney disease is associated with situs inversus
Definition
nephronophtisis II
Term
what are the cardiac manifestations of ADPKD
Definition
aortic root and annulus dilation. Cardiac valvular abnormalities occur in 25% of patients, most commonly mitral valve prolapse and aortic regurgitation
Term
what is the MCC of ESRD in children and adolescents
Definition
nephronophthisis
Term
medullary cystic kidney disease with small kidneys, salt wasting, cysts restricted to medulla etc. what is a clinical clue that this is the diagnosis
Definition
hyperuricemia and gout
Term
what is the mgmt of tuberous sclerosis with cysts or angiomyolipomas
Definition
regular imaging to monitor for the development of renal cell carcinoma
Term
when do you treat angiomyolipomas in tuberous sclerosis and how
Definition
>4 cm, transcatheter arterial embolization or surgical excision
Term
how do you manage kidney tumors in VHL
Definition
under 3 cm - monitor closely
over 3 cm and no mets - partial nephrectomy
Term
what inherited kidney disease is associated with recurrent nephrolithiasis, and maybe RTA type 1
Definition
medullary sponge disease
Term
how is the diagnosis of medullary sponge kidney made?
Definition
hyperdense papillae with clusters of small stones on renal ultrasonography or abdominal x-ray - paintbrush like
Term
in medullary sponge kidney, with partial dRTA and hypocitraturia, what is a preventive treatment for new stone formation
Definition
potassium citrate
Term
Hypokalemia and hypochloremic metabolic alkalosis without hypertension are more often due to surreptitious vomiting or diuretic abuse than to Bartter's or Gitelman's syndrome. In contrast to Bartter's and Gitelman's syndromes, urinary chloride levels are very low in patients with surreptitious vomiting. Diuretic abuse can be diagnosed by screening the urine for the offending agents. Gitelman's syndrome is distinguished from most forms of Bartter's syndrome by the presence of severe hypomagnesemia and hypocalciuria.
Definition
Term
treatment of bartter and gittleman syndromes
Definition
maintain kalium with spirinolactone or amiloride
NSAIDs reduce the polyuria in bartter's but not gittelman's
Term
Hereditary Tubular Disorders Causing Hypertension Due to Salt Retention
Definition
liddle's syndrome, gordon's syndrome
Term
what is the treatment of RTA type 1
Definition
alkali replacement (bicarbonate loss)
Term
what do brown casts in the urine indicate?
Definition
ATN
Term
how is the diagnosis of IgA nephropathy made?
Definition
Bx
Term
2 clinical presentations of IgA nephropathy
Definition
recurrent episodes of macroscopic hematuria during or immediately following an upper respiratory infection often accompanied by proteinuria or

persistent asymptomatic microscopic hematuria
Term
renal failure seen in only 25–30% of patients with IgA nephropathy over 20–25 years (duration of disease)
Definition
Term
risk factors for CKD in patients with IgA nephropathy, first one being the most predictive
Definition
persistent proteinuria > 6 months, hypertension or proteinuria, the absence of episodes of macroscopic hematuria, male age, older age of onset, and extensive glomerulosclerosis or interstitial fibrosis on renal biopsy
Term
how is IgA nephropathy treated in patients presenting with RPGN
Definition
steroids, cytotoxic agents, and plasmapheresis
Term
infection in which 2 organs precede the onset of poststreptococcal GN?
Definition
Skin and throat infections
Term
20% of adults with PSGN have proteinuria in the nephrotic levels
Definition
Term
3 serologic findings (and their frequencies) in PSGN?
Definition
ASO (30%), anti-DNAse, (70%), or antihyaluronidase antibodies (40%)
Term
2 complement factors depressed and one which remains normal in PSGN
Definition
depressed - C3, CH50 (total complement activity) normal C4
Term
what is the treatment of PSGN with crescents on glomerular Bx?
Definition
There is no role for immunosuppressive therapy, even in the setting of crescents
Term
what is the gross appearance of the kidneys in subacute bacterial endocarditis associated GN?
Definition
subcapsular hemorrhages with a "flea-bitten" appearance
Term
3 other conditions that resemble subacute bacterial endocarditis may cause associated GN
Definition
ventriculoatrial and ventriculoperitoneal shunts; pulmonary, intraabdominal, pelvic, or cutaneous infections; and infected vascular prostheses
Term
what is the treatment and prognosis of lupus nephritis class I/II?
Definition
they are limited to the mesangium and hence do not deteriorate to renal failure and do not need treatment
Term
which serologic marker is typical of class IV lupus nephritis, in relation to the rest of the lupus nephritis classes
Definition
high anti-DNA antibody titers
Term
what is considered remission in class III and IV lupus nephritis, predicting good renal outcome
Definition
a return to near-normal renal function and proteinuria < 330 mg/dL per day
Term
what is the treatment of class III, IV and V lupus nephritis
Definition
high-dose steroids and either cyclophosphamide or mycophenolate mofetil for 2–6 months, followed by maintenance therapy with lower doses of steroids and mycophenolate mofetil
Term
Patients with lupus nephritis class V, like patients with membranous GN, are predisposed to which type of conditions?
Definition
renal-vein thrombosis and other thrombotic complications
Term
what is a bad prognostic sign in class V lupus nephritis?
Definition
associated APLA
Term
4 environmental factors that are involved in the pathophysiology of anti-GBM GN, by exposing collagen type IV to antibody detection
Definition
infection, smoking, oxidants, or solvents
Term
what are 2 bad prognostic signs in goodpasture's syndrome
Definition
abscence of hemoptysis and presence of oliguria
Term
what is a predominant symptom in young smokers with goodpasture's syndrome
Definition
massive hemoptysis
Term
what is the most urgent step in the workup of a patient suspected of goodpasture's syndrome?
Definition
renal biopsy
Term
4 bad prognostic factors in goodpasture's syndrome
Definition
>50% crescents with advanced fibrosis

creatinine >5–6 mg/dL

oliguria

need for acute dialysis
Term
what is a good prognostic factor in goodpasture's syndrome
Definition
presence of ANCA
Term
what is the treatment of goodpasture's syndrome
Definition
10 courses of plasmapheresis and oral prednisone and cyclophosphamide in first 2 weeks

renal failure progresses rapidly - dialysis

kidney transplantation only 6 months into complete serologic remission - otherwise danger of recurrence with new organ
Term
which disease is more frequently associated with anti MPO? and which with anti-PR3?
Definition
churg-strauss and microscopic polyangiitis

Wegener's
Term
what is the treatment of all 3 ANCA associated GN
Definition
induction with plasmapheresis, methylprednisolone, and cyclophosphamide

maintenance for up to a year with cyclophosphamide or azathioprine after achieving remission
Term
which type of GN do the following s/s implicate - fever, purulent rhinorrhea, nasal ulcers, sinus pain, polyarthralgias/arthritis
Definition
Wegener's
Term
findings on CXR of Wegener's
Definition
nodules and persistent infiltrates, sometimes with cavities
Term
finding on lung Bx of Wegener's
Definition
non caseating granulomas
Term
which environmental factor increases the risk of "contracting" Wegener's granulomatosis? and which inheritable disease?
Definition
silicosis
alpha 1 antitrypsine
Term
in which type of anca induced GN is relapse most probable?
Definition
Wegener's
Term
how do you distinguis microscopic polyangiitis from Wegener's
Definition
Bx, the former will lack granulomas
Term
which type of GN is implicated with the following s/s: peripheral eosinophilia, asthma, allergic rhinitis, Hypergammaglobulinemia, elevated levels of serum IgE
Definition
churg strauss
Term
what is the prognosis of membranoproliferative GN
Definition
50% renal failure at 10 yrs
Term
3 predictors of bad outcome in MPGN
Definition
Nephrotic syndrome, hypertension, and renal insufficiency
Term
what is the treatment of primary MPGN, not associated with HCV, autoimmune diseases of malignancies/
Definition
steroids, plasma exchange and immunosuppressive drugs
Term
what is a good prognostic indicator of outcome in Mesangioproliferative Glomerulonephritis (not to be confused with membranoPGN)? what is a bad one?
Definition
isolated hematuria - good
proteinuria - bad
Term
what metabolic/endocrinologic/hematologic disturbance is usually present in nephrotic syndromes
Definition
hypercholesterolemia
hypothyroidism (decreased TBG)
procoagulable state
Term
if not primary, minimal change disease may be associated with what 3 conditions
Definition
Hodgkin's disease, allergies, or use of NSAIDs
Term
what is the finding on electron microscopy of renal biopsy from a patient with minimal change disease
Definition
effacement of the foot process
Term
what can be found in the urine of patients with minimal change disease
Definition
acellular urinary sediment - only protein and mild hematuria if at all
Term
in patients thought to have minimal change disease, what is the course of action in they are not responding to steroid treatment
Definition
repeat Bx: maybe they have FSGS
Term
what is the treatment of minimal change disease?
Definition
prednisone
Term
which children are considered primary responders to the treatment of minimal change disease
Definition
after one dose of prednisone they achieve remission (<0.2 mg/24 h of proteinuria)
Term
how would you assess for remission in minimal change disease?
Definition
24 hr urine collection for proteinuria
Term
3 treatment options for remission of minimal change disease
Definition
cyclophosphamide, chlorambucil, and mycophenolate mofetil
Term
prognosis of focal segmental glomerular sclerosis
Definition
50% renal failure at 6-8 yrs
Term
3 predictors of poor prognosis in alport's syndrome (nephrotic syndrome + deafness + anti GBM)
Definition
Early severe deafness, lenticonus, or proteinuria
Term
which nephrotic syndrome should include clincial evaluation for eye-sight and hearing defects?
Definition
alport's syndrome
Term
what risk factor for ESRD in hypertensive glumerulosclerosis is not intuitive?
Definition
low birth age
Term
how is the diagnosis of hypertensive nephrosclerosis made?
Definition
it doesn't need Biopsy!
Term
some patients with cholesterol kidney emboli have 2 rather bizarre lab findings, what are they?
Definition
eosinophilia, or eosinophiluria
Term
how is the diagnosis of cholesterol kidney emboli made?
Definition
with the right clinical presentation a biopsy from more convenient tissues like the skin is preferable
Term
typical finding on urine examination of patients with sickle cell related kidney disease
Definition
hyposthenuria - diluted urine which leads to volume depletion
Term
what distinguishes patients with HIV presenting with FSGS from the other patients with nephrotic syndromes?
Definition
absence of hypertension, edema, or hyperlipidemia
Term
2 types of kidney injuries can be seen in patients with syphillis?
Definition
interstitial nephritis
MGN (nephrotic syndrome)
Term
2 classes of leprosy to manifest with kidney injury and what 3 types of kidney injury
Definition
borderline lepromatous and lepromatous

FSGS, mesangioproliferative glomerulonephritis, or renal amyloidosis
Term
4 parasitic infections that may manifest with some sort of glomerular kidney injury
Definition
toxoplasma, leishmania, Filariasis and trichinosis
Term
Postobstructive Diuresis - what cases have polyuria with relief of obstruction
Definition
bilateral - polyuria, hypotonic
polyuria would stop when extracellular volume returns to normal
Term
urinary tract obstruction - 4 conditions where hydronephrosis will not be seen on US
Definition
less than 48 hours in duration or associated with volume contraction, staghorn calculi, retroperitoneal fibrosis, or infiltrative renal disease
Term
in which disturbance, chronic or acute urinary obstruction is there decreased renal blood flow?
Definition
chronic
Term
what is the first lab sign of PSGN
Definition
decreased C3
Term
autoimmune disease usually cause which type of glomerular injury
Definition
membranous GN
Term
5 possible presenting s/s of renal vein thrombosis
Definition
flank pain, tenderness, hematuria, rapid decline in renal function, and proteinuria
Term
what is the most sensitive test for renal vein thrombosis?
Definition
CT angio (not doppler)
Term
nephrolithiasis with alkali urine pH>5.5
Definition
calcium stones - Distal RTA
Term
which type of kidney stone is radioluscent
Definition
uric acid stones
Term
nephrotic findings in urine examination, low C3 and C4, no ANCA?
Definition
lupus nephritis
Term
4 elements in the assessment of metabolic alkalosis
Definition
extracellular fluid volume (ECFV), the recumbent and upright blood pressure, the serum [K+], and the renin-aldosterone system
Term
chronic hypertension and chronic hypokalemia in an alkalotic patient suggests either
Definition
mineralocorticoid excess or that the hypertensive patient is receiving diuretics
Term
Low plasma renin activity and normal urine [Na+] and [Cl–] in a patient who is not taking diuretics indicate...
Definition
a primary mineralocorticoid excess syndrome
Term
4 causes of hyperaldosteronism with low renin
Definition
licorice, primary hyperaldosteronism, adrenal enzyme deficiency (17 and 11), and cushing's
Term
5 causes of hypokalemia and alkalosis in a normotensive, nonedematous patient
Definition
Bartter's or Gitelman's syndrome, magnesium deficiency, vomiting, exogenous alkali, or diuretic ingestion
Term
how to further workup hypokalemia and alkalosis in a normotensive, nonedematous patient
Definition
If the urine is alkaline, with an elevated [Na+] and [K+] but low [Cl–], the diagnosis is usually either vomiting (overt or surreptitious) or alkali ingestion

If the urine is relatively acid and has low concentrations of Na+, K+, and Cl–, the most likely possibilities are prior vomiting, the posthypercapnic state, or prior diuretic ingestion

neither the urine sodium, potassium, nor chloride concentrations are depressed, magnesium deficiency, Bartter's or Gitelman's syndrome, or current diuretic ingestion should be considered
Term
Bartter's syndrome is distinguished from Gitelman's syndrome
Definition
by hypocalciuria and hypomagnesemia in the latter disorder
Term
4 situations where you might be receiving alkali solutions
Definition
HCO3– (PO or IV), acetate loads (parenteral hyperalimentation solutions), citrate loads (transfusions), or antacids plus cation-exchange resins (aluminum hydroxide and sodium polystyrene sulfonate)
Term
diuretics that cause hyperchloriuria and thus bicarbonate retention
Definition
fusid, thiazide
Term
acute kidney injury with hyperkalemia, hyperphosphatemia and hypocalcemia, suggests...
Definition
rhabdomyolysis or the tumor lysis syndrome
Term
in acute kidney injury, how to distinguish rhabdomyolysis from tumor lysis syndrome
Definition
CPK levels and serum uric acid are elevated in rhabdomyolysis, while tumor lysis syndrome shows normal or marginally elevated creatine kinase and markedly elevated serum uric acid
Term
how is the urination in partial urinary tract obstruction
Definition
excess urination, isosthenuria (damaged ability to concentrate urine) for several days
Term
presentation of renal vein thrombosis
Definition
flank pain, hematuria, proteinuria, decreasing renal function
Term
3 mechanisms of renal vein thrombosis
Definition
endothelial damage: Homocystinuria, endovascular intervention, and surgery

venous stasis: dehydration in peds, kinking/compression from retroperitoneal process
Term
what is the most sensitive imaging test for renal vein thrombosis?
Definition
CT angio
Term
6 risk factors for acute kidney injury after PTCA?
Definition
metformin, DM, diuretics, CHF, ACEi, MM
Term
6 causes of acute renal failure and hypocomplementemia
Definition
HCV cryoglobulinemia, PSGN, MPGN, SBE, shunt, lupus nephritis
Term
prognosis in renal amyloidosis
Definition
bad when azothemia (unrelated to proteinuria)
Term
clinical manifestations of barrter's syndrome
Definition
hypokalemia, hypochloremia, hypotension, nephrolithiasis, hyper pge2, alkalosis
Term
liddle's syndrome
Definition
hypokalemia, metabolic alkalosis, hypertension, low aldosterone and renin
Term
treatment of familial hypocalciuric hypercalcemia
Definition
no treatment
Term
what is the safest diabetic drug to administer in CKD?
Definition
rosiglitazone, also has a protective effect
Term
in which patients should you screen for HCV?
Definition
proteinuria + hematuria
Term
what does fanconi's syndrome consist of?
Definition
RTA type 2, hyperphosphaturia, hyperuricosuria, hypercalciuria, nonselective aminoaciduria, glycosuria, hyperchloremic acidosis, rickets and osteomalacia
Term
clinical manifestations of RTA type 1
Definition
urine pH > 5.5, hypokalemia, hypocitraturia, hypercalciuria, nephrocalcinosis, nephrolithiasis, rickets/osteomalacia
Term
what is the treatment of RTA type 1 and 2, and what is the difference btwn the treatment of these 2?
Definition
bicarbonate, RTA type 2 should be treated with higher doses which would cause hypokalemia and hence should also be supplemented with kalium
Term
MCC of acute interstitial nephritis
Definition
ibuprofen ( without rash and fever)
Term
acute interstitial nephritis goes with heavy proteinuria and acute renal failure
Definition
Term
in which cases osmolal gap increased (>15)
Definition
Alcohols
ethanol intoxication
methanol ingestion
ethylene glycol ingestion[7]
acetone ingestion
isopropyl alcohol ingestion
Sugars
mannitol
sorbitol
Lipids
Hypertriglyceridemia
Proteins
Hypergammaglobinemia (M. Waldenstroem)
Term
renal failure + hypocomplementemia
Definition
cryoglobulinemia, PSGN, lupus nephritis, SBE, MPGN, cholesterol emboli
Term
glomerular injury in HIV
Definition
FSGS, MPGN, MCD
Term
glomerular injury in HBV
Definition
MPGN, MGN
Term
glomerular injury in HCV
Definition
MGN, MPGN, cryoglobulinemia, immune complex GN
Term
glomerular injury in graves
Definition
MGN
Term
glomerular injury in malignancy
Definition
MGN
Term
glomerular injury in HUS
Definition
nephrotic
Term
glomerular injury in penicillamine
Definition
MGN, RPGN
Term
what is the treatment for pyelonephritis with complicated histories, previous episodes of pyelonephritis, or recent urinary tract manipulations
Definition
beta-lactam and a beta-lactamase inhibitor (e.g., ampicillin-sulbactam, ticarcillin-clavulanate, and piperacillin-tazobactam) or imipenem-cilastatin
Term
no hypocomplementemia in HSP
Definition
Term
how would you test if a patient adheres to his low sodium diet
Definition
check urine potassium
Term
indications to initiate dialysis in CKD
Definition
Pericarditis or pleuritis (urgent indication)
Progressive uremic encephalopathy or neuropathy, with signs such as confusion, asterixis, myoclonus, wrist or foot drop, or, in severe cases, seizures (urgent indication)
A clinically significant bleeding diathesis attributable to uremia (urgent indication)
Fluid overload refractory to diuretics
Hypertension poorly responsive to antihypertensive medications
Persistent metabolic disturbances that are refractory to medical therapy; these include hyperkalemia, metabolic acidosis, hypercalcemia, hypocalcemia, and hyperphosphatemia
Persistent nausea and vomiting
Evidence of malnutrition
Term
what is missing in the treatment of a patient on dialysis
Definition
magnesium
Term
hypernatremia is not typical of ARF, hypermagnesemia is
Definition
Term
2 electrolyte disturbances that may cause NDI
Definition
hypokalemia and hypercalcemia
Term
whats absent in PAN and present in microscopic polyangiitis
Definition
GN
Term
both Wegener's and Goodpastures are treated with predinsone, cyclophosphamide and plasmapheresis
Definition
Term
how to distinguish diarrhea from RTA as a cause of hyperchloremic normal AG metabolic acidosis
Definition
measure urinary AG (Na+K-Cl)
negative - diarrhea (excretion of NH4+ - kidney is acidifying urine)
positive - RTA
Term
אם אלבומין נמוך זה מוריד את ה-AG. כל ירידה של 1g/dL באלבומין מורידה 2.5 מא"ק ב-AG
Definition
Term
interstitial nephritis - findings
Definition
ירידה ב-GFR, פקוני, אצידוזיס היפר-כלורמי (AG תקין), פרוטאינוריה טובולרית או משקל נמוך, פולי אוריה, isosthenuria, היפר-קלמיה, salt wasting
Term
urinary casts
Definition
hyaline cast = pre-renal failure; WBC casts = Allergic interstitial nephritis
Term
causes of ATN
Definition
איסכמיה, זיהומים, טוקסינים אנדוגנים (רבדומיוליזיס, המוליזיס), טוקסינים אקסוגניים (ח"נ, calcineurin inhibitors, אנטיביוטיקה – AG, כימותרפיה – ציספלטין, אמפוטריצין B, אתילן גליקול
Term
תרופות שגורמות להיפוקלמיה
Definition
• פוסיד
• תיאזיד
• אמפוציטרין B
• לקסטיב
• פרדניזון
• גנטמיצין
Term
3 תרופות שכיחות ביותר בAIN
Definition
NSAID אנטיביוטיקה ואומפרדקס
Term
membranous GN
Definition
• בדם יש C3 נמוך
• במיקרוסקופ אור התעבות אחידה של ה- BM לאורך ה- capillary loops הפריפריים
• האימונופלורוסנציה מדגימה משקעים דיפוזיים גרנולריים של C3/ IgG .
• מיקרוסקופ אלקטרוני באופן טיפוסי מגלה משקעים סאב-אפיתליאליים
• 80% מהחולים עם MGN מופיעים עם סנדרום נפרוטי ופרוטאינוריה לא סלקטיבית.
• המטוריה מיקרוסקופית נראית ב- 50% מהחולים.
• רמיסיה ספונטאנית מתרחשת ב 20-30%- מהחולים
• כ 30%- מהחולים ממשיכים לחוות חזרות של הסנדרום הנפרוטי אבל שומרים על תפקוד כלייתי נורמאלי.
• וכ 30%- נוספים מהחולים מפתחים אי ספיקת כליות או מתים מהסיבוכים של הסנדרום הנפרוטי
• פרוגנוזה רעה קשורה עם: מין זכר, גיל מבוגר, יל"ד והימשכות הפרוטינוריה
Term
ב-FSGS סטרואידים ניתנים רק במחלה ראשונית - אין מקום לסטרואידים במחלה שניונית
Definition
Term
אינדיקציות לבירור היפראלדוסטרוניזם ראשוני כסיבה ליל"ד (PRA)
Definition
Hypertension and spontaneous or low dose diuretic-induced hypokalemia
Severe hypertension (>160 mmHg systolic or >100 mmHg diastolic) or drug-resistant hypertension (defined as suboptimally-controlled hypertension on a three-drug program that includes an adrenergic inhibitor, vasodilator, and diuretic)
Hypertension with adrenal incidentaloma
Hypertension and a family history of early-onset hypertension or cerebrovascular accident at a young age (<40 years)
All hypertensive first-degree relatives of patients with primary aldosteronism
Term
a low urine chloride concentration in a patient with unexplained metabolic alkalosis and hypokalemia usually reflects vomiting or prior diuretic therapy
Definition
Term
The distinction between vomiting and diuretic therapy in this setting can be made only if the characteristic physical findings of self-induced vomiting are present, if a urine assay for diuretics is positive, or if the urine chloride concentration is high at a subsequent measurement (because the diuretic is acting) while the patient still has metabolic alkalosis
Definition
Term
a urine chloride concentration that is not low suggests either continued diuretic therapy or Bartter or Gitelman syndrome
Definition
These disorders cannot be distinguished in the absence of a history of diuretic use or a positive urine assay for diuretics, since they have identical clinical manifestations and pathogeneses
Term
metabolic alkalosis represents one of the conditions in which volume depletion may not lead to a low urine sodium concentration
Definition
Term
The presence of underlying hypovolemia can be detected more accurately by finding a urine chloride concentration below 25 meq/L
Definition
Term
he urine chloride concentration, however, may be inappropriately elevated if there is a defect in chloride reabsorption. This most commonly occurs with diuretic therapy and is transient, as chloride is appropriately conserved once the drug effect wears off. Marked hypokalemia (plasma potassium concentration below 2 meq/L) also can reversibly impair chloride transport, leading to a rise in chloride excretion that is independent of volume status
Definition
Term
תרופות שגורמות לבססת נשימתית
Definition
o סליציאטים
o תאופילין/אמינופילין
o פרוגסטרון
Term
גורמי סיכון לאס"כ לאחר צינתור/חומר ניגוד
Definition
• מטפורמין
• עמילואידוזיס
• סכרת
• ACEI
• אי ספיקת לב
• גיל מעל 80
• MM
• התייבשות
Term
סדר פעולות בבירור היפונתרמיה
Definition
1. אוסמולריות בדם
2. אם אוסמולריות בדם נמוכה - אוסמולריות בשתן
3. נפח הדם
4. הפרשת נתרן בשתן
Term
סדר פעולות בירור היפונתרמיה - מפורט עד לשלב בו בודקים נפח בדם
Definition
• אוסמולריות גבוהה בהיפרגליקמיה ומניטול
• אוסמלריות תקינה בהיפרפרוטינמיה, היפרליפידמיה ושטיפת שלפוחית
• כל היתר זה אוסמולריות נמוכה
• על כל עליה של 100 בגלוקוז נוסיף 1.4 לנתרן
• תיאזיד הוא המשתן שגורם בעיקר להיפונתרמיה
• לפני שממשיכים לנתח היפונתרמיה היפו אוסמוטית יש לשלול שתיית היתר עקב פולדיפסיה פסיכוגנית או שינוי באוסמוסטאט - במקרים אלו השתן יהיה פחות מ100 אוסמול וSG יהיה 1.003
• לאחר ששללנו פולידפסיה נמשיך כמצוין בדיאגרמה המצורפת
Term
סדר פעולות בירור היפונתרמיה - מפורט עד לשלב בו בודקים נפח בדם
Definition
• אוסמולריות גבוהה בהיפרגליקמיה ומניטול
• אוסמלריות תקינה בהיפרפרוטינמיה, היפרליפידמיה ושטיפת שלפוחית
• כל היתר זה אוסמולריות נמוכה
• על כל עליה של 100 בגלוקוז נוסיף 1.4 לנתרן
• תיאזיד הוא המשתן שגורם בעיקר להיפונתרמיה
• לפני שממשיכים לנתח היפונתרמיה היפו אוסמוטית יש לשלול שתיית היתר עקב פולדיפסיה פסיכוגנית או שינוי באוסמוסטאט - במקרים אלו השתן יהיה פחות מ100 אוסמול וSG יהיה 1.003
• לאחר ששללנו פולידפסיה נמשיך כמצוין בדיאגרמה המצורפת
Term
בהיפר קלמיה נצפה לאיבוד של לפחות 200 ממול אשלגן ליום, אם פחות,זו בעיה כלייתית
Definition
 RTA4 –אי ספיקת כליות קלה, מחלה כרונית TI או נפרופתיה סכרתית
 NSAID
 ACEI/ARB
 היפואלדסטרוניזם/פסאודוהיפואלדסטרוניזם
 הפרין
 ספירנולקטון
 אמילורואיד
 אי ספיקת כליות חריפה עם אוליגוריה
 חסימה של דרכי שתן
 סינדרום גורדון –היפרקלמיה,חמצת, GFR תקין ודיכוי רנין ואלדסטרון
Term
עירוי מאסיבי עם תאי דם שהופשרו גורם להיפוקלמיה
Definition
Term
• TYPE 1 – ל90 אחוז מחולים עם נפרופתיה יש רטינופתיה
• TYPE 2 – ל60 אחוז מחולים עם נפרופתיה יש רטינופתיה
Definition
Term
ADPKD
Definition
• מתבטא בעשור 3-4
• לעד 20 אחוז אבני כליה
• ל75 אחוז יל"ד
• חצי יפתחו ESRD עד גיל 60.
• UTI נפוץ
• סונר משמש לאבחנה וסקר,דרוש 3-5 ציסטות בכל כליה לשם אבחנה
• ציסטות גם בכבד,טחול, לבלב, שחלות
• ל10 אנוריזמות מוחיות
• ל25 אחוז MVP
• דיברטיקולוזיס
• AR/TR בשכיחות מוגברת
Term
סינדרום גיטלמן
Definition
• פגיעה בDcT
• שכיח יותר מברטר
• מהלך קליני קל יותר מברטר ומופיע בגיל מבוגר יותר
• היפוולמיה מוביל להיפראלדסטרוניזם
• ללא בצקת
• נורמוטנסיבי
• היפוקלמיה
• בססת
• היפומגנזמיה קשה
• היפוקלציאוריה
• סימפטומים וסימנים משמעותיים בשרירים
• טיפול-תוספי אשלגן, מגנזיום וצריכה חופשית של מלח. מינונים גבוהים של ספירנולקטון או אמילורואיד
Term
תסמונת ברטר
Definition
• פגיעה בloop OF HENLE
• תקופה נאונטלית או ילדות מוקדמת עם פוליאוריה, פולידיפסה ורעב למלח
• היפוולמיה מוביל להיפראלדסטרוניזם
• ללא בצקת
• נורמוטנסיבי
• היפוקלמיה
• בססת
• היפומגנזמיה קלה
• היפרקלציאוריה עם אבני כליה
• יצור יתר של פרוסטוגלנדין E2 והפרשתו בשתן– שהכמות מוגברת במיוחד גורם לסינדרום שכולל FTT והתייבשות קשה עם חום הקאות ושילשול
• טיפול-תוספי אשלגן, מגנזיום וצריכה חופשית של מלח. מינונים גבוהים של ספירנולקטון או אמילורואיד, בנוסף NSAID
Term
תסמונת לידל
Definition
• ספיגה לא מבוססת של נתרן דרך ENAC
• בססת
• היפוקלמיה
• יל"ד קשה
• רמות רנין ואלדוסטרון נמוכות
• טיפול על ידי הגבלת מלח והאמילורואיד
Term
• אבני סידן ואוקסולאט נוצרות בPH בסיסי ולכן נרצה להחמיץ את השתן
• אבני חומצה אורית נוצרות בPH חומצי ולכן נרצה להבסיס את השתן
Definition
Term
drugs that may cause nephrogenic diabetes insipidus
Definition
Lithium
Demeclocycline
Methoxyflurane
Amphotericin B
Aminoglycosides
Cisplatin
Rifampin
Foscarnet
Term
Causes of an osmolar gap in the absence of a metabolic acidosis include isopropyl alcohol ingestion, sick cell syndrome in patients with multiorgan failure, absorption or systemic infusion of glycine, sorbitol, or mannitol irrigation solutions, and intravenous immune globulin in a maltose solution to patients with renal failure. In addition, a spurious increase in the serum osmolal gap can occur in patients with pseudohyponatremia due to marked hyperlipidemia or hyperproteinemia
Definition
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