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Nephro ICM
Kidney
44
Medical
Graduate
10/31/2010

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Cards

Term
symptoms of renal vein thrombosis
Definition
flank pain, hematuria, AKF, membranous nephropathy
Term
what % of renal function is lost before SCr rises?
Definition
50%
Term
what factors affect serium creatinine
Definition
age, sex, muscle mass, dietary protein intake
Term
how do you calculate creatinine clearance rate?
Definition
Ccr= Ucr x V / PCr
Term
Why is blood urea used less often to measure renal function?
Definition
varies with diet, reabs in tubules (falsely lowers GFR), reabs varies w/urine flow (clearance becomes independent at low urine flow rates)
Term
stages of chronic kidney disease
Definition
normal: GFR 90ml/min
CKD1- evidence of kidney dmg
CKD2(mild)- kidney dmg & GFR 60-89
CDK3(mod)- GFR 30-59
CKD4(severe)- GFR 15-29
CKD5(failure)- GFR < 15
Term
U/S reveals echogenic & enlarged kidneys indicates
Definition
parenchymal renal disease
Term
U/S reveals echogenic and small kidneys indicates
Definition
advanced chronic kidney disease
Term
procedure of choice to differentiate cystic from solid renal masses
Definition
U/S
Term
used for initial assessment for kidney stones
Definition
plain radiograph
Term
why is it important to get a morning urine specimen
Definition
acidic and concentrated (alkaline can dissolve the formed elements)
Term
causes of turbidity
Definition
blood, pyuria, chyluria, or phosphate precip
Term
normal morning urine ph
normal urine ph range
Definition
morning: 5-6
range: 4.5-8
Term
WBCs in urine indicate
Definition
inflammation in kidney or urinary tract
i.e. pyelo or cystitis or AIN
Term
what causes hyaline casts
Definition
Tam-horsfall proteins (Secreted by LOH cells) aggregate in distal nephron or CD when urine flow is sluggish and environment is acidic
Term
tubular epithelial cell cast indicates
Definition
ATn
Term
what causes waxy casts
Definition
entrapment of albumin in nephrotic syndrome
Term
hexagonal shap cystine crystals indicate
Definition
pathology
Term
envelope shaped oxalate crystals indicate
Definition
calcium oxalate stone or ethylene glycol poisoning
Term
what are symptoms of uremia?
Definition
ocnfusion, asterixis
Term
What is the most common cause of tubular disease?
Definition
ATN
Term
What is the definition of chronic renal insufficiency?
Definition
chronic elevation of serum creatinine but not renal failure
Term
What can cause transient proteinuria (less than 1gm/day)?
Definition
fever in hospitalized patients
CHF
exercise
overproduction of light chains, heavy chains, or other fragments of Ig
Term
What are the clinical consequences of nephrotic syndrome?
Definition
low serum albumin
low plasma oncotic pressure
reduced intravasc volume
salt and water retention
increased lipids
hypercoag
Term
When will BUN and creatinine be raised above normal levels?
Definition
when 50% of total kidney function is lost
Term
What is the initial procedure of choice to distinguish cystic v solid renal mass?
Definition
Ultrasound
Term
What type of stones cannot be seen on plain xray?
Definition
uric acid and cystine
Term
When do you seen transitional epithelial cells in the urine?
Definition
pyelitis, calculi, cystitis etc
Term
maltese cross
Definition
fat droplets(lipiduria); nephrotic syndrome
Term
What could cause a patient w/o renal disease to have hyaline casts in the urine?
Definition
dehydration
Term
When do you see diamond shaped (uric acid) crystals?
Definition
uric acid calculi, acute urate nephropathy, rhabdomyalysis
Term
What is the definition of chronic kidney disease?
Definition
progressive and irreversible loss of function; GFR <60 for 4 or more months
Term
What are risk factors for CKD?
Definition
DMB, HT, family Hx, reduction in kidney mass, low birth weight, >60yo, minority status, low income/educational level
Term
What are the hallmarks of tubular hypertrophy and glomerular sclerosis?
Definition
hypertension, tubular hypertrophy, and glomerular sclerosis
Term
What condition is associated w/hyperfiltration and glomerular hypertrophy?
Definition
diabetes and hyperglycemia
Term
How does hyperlipidemia damage the kidney?
Definition
it produces mesangial proliferation
Term
How do ACE inhibitors and ARBs reduce proteinuria?
Definition
They dilate the efferent arterioles and reduce intraglomerular pressure
Term
At what stage of chronic kidney disease do you prepare for dialysis and transplantation?
Definition
stage 4
Term
Definition of kidney failure
Definition
GFR < 15
Term
What are some complications of chronic kidney disease?
Definition
HTN, anemia, CVD, malnutrition, bone disease, acidosis, decreased quality of life
Term
What are the metabolic consequences in stage 2 of chronic kidney disease?
Definition
decreased urine phosphate excretion (transient rise in serum phosphate and decreased in calcium)
decreased renal alpha hydroxylase activity (decreased vitamin D production)
Term
What is the major cause of morbidity/mortality in patients w/CKD?
Definition
accelerated atherosclerosis
Term
Consequences of uremic syndrome
Definition
atherosclerosis, pleuritis, hyperparathyroidism, anemia, prolonged bleeding, depressed immune system, GI problems, pale yellow color, weakness, osteodystrophy
Term
What happens to children w/CKD?
Definition
malnourished and growth retardation
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