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South College Clinical Lab Med
Quiz 1 Cards
42
Biology
Graduate
01/12/2009

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Term

Blood Collection Tubes:

 

1)  Allows blood sample to clot and permits serparation of serum when it needs to be tested

Definition
1)  Red Top
Term

Blood Collection Tubes:

 

Prevents blood from clotting, has the additive EDTA in it to prevent the clotting

Definition
Purple or Lavender Top
Term

Blood Collection Tubes:

 

Prevents Glycolysis so one can estimate the amount of glucose in the original sample.  Contains the additive SODIUM FLUORIDE OXALATE

Definition

 

 

Gray Top

Term

Blood Collection Tubes:

 

Prevents blood from clotting when plasma needs to be tested.  Contains the additive Heparin.

 

 

Definition
Green Top
Term

Blood Collection Tubes:

 

Prevents blood from clotting when plasma needs to be tested and contains the additive SODIUM CITRATE

Definition

 

 

Blue Top

Term

Blood Collection Tubes:

 

Binds Calcium to prevent blood clotting.  Contains the additive Sodium Citrate

Definition
Black Top
Term

Blood Collection Tubes:

 

Preserves Red Blood Cells...contains the additive CITRATE DEXTROSE.  

Definition
Yellow Top
Term

Blood Collection Tubes:

 

Collects Serum....Specially designed Separator Tube that contains no Additive

Definition
Gold Serum Separator Tube
Term

T/F...1)  Perform testing only if it will alter prognosis, treatment

2)  Reference ranges never vary from lab to lab

3)  What is the name that oversees proper medical laboratory quality control and standards?

4)  Reference values represent __% of the population.

5)  T/F     Negative lab values rule out a clinical diagnosis.

Definition

1)  True

2)  False

3) Clinical Laboratory Improvement Amendments (CLIA) 

4)  95%

5)  False..they don't rule out a clinical diagnosis

Term

1)  CLIA  Certificate renewal is every __ years

2)    What is one way in which CLIA ensures quality laboratory testing

3)  Lab personnel must be ______ and competent.

 

Definition

1)  Two

2)  By requiring submission of SOP (standard opperating procedures)

3)  qualified

Term

1)     Name the 4 major components of Blood
 

2) What makes up Plasma (Anticoagulated)?

3) What makes up Serum (Coagulated)

 

Definition

1)  i)Plasma
    ii) WBC
    iii) RBC
         iv) Platelets

2)  The watery, liquid part of the blood in which the red blood cells, the white blood cells, and platelets are suspended.

3)   Pale yellowish fluid which exudes from the clot formed in the coagulation of the blood; the liquid portion of the blood, after removal of the blood corpuscles and the fibrin.

Term

 Give the Normal Values: 

1)  CBC... i)  RBC#

ii) MCV

iii) MCHC

 2)    Urinalysis...i) pH? ii)  protien iii)  specific gravity iv)  Glucose, ketones, nitrates, crystals, cast?v) RBC

 

Definition

1)  4.2-6.1 x 10^6  (Male>Female) ii)  80-95 micrometers^3 iii) 32-36 g/dl (or 32-36%)

 2)   i)  4.6-8

ii)None or up to 8mg/dl (much more during activity)

iii)1.005-1.030(newborns are lower)

iv) NEGATIVE (no more than50-300mg/day)

v)  less than 2

Term

Normal Values

1)  ProTime
2)   Partial Prothrombin time

3) Activated Prothrombin Time

4)    INR:
5)  glucose
 

 

Definition

1)  11-12.5 seconds

2)   60-70 seconds

3) 30-40 seconds (intrinsic pathway with activators)

4)  0.8-1.1 

5)   4-7 mmol/L...(this may need to be double checked...i got it off of wikipedia)

Term
1)    Bun:
2)  Creatinine: :
3)   Blood potassium: adult:
4)  Blood  sodium:
5)  Blood chloride:
Definition

1) 10-20 mg/dl (BUN is directly related to metabolic function of liver and excretory function of kidney)

2) 0.5-1.2 mg/dl, Male (slightly higher than female)

3) 3.5-5.0 mEq/L

4)135 - 147 mEq/L

5) 98-106 mEq/L

Term

1)  CO2:  
  2)  reticulocyte count: 
  3) CPK <1.0 mg/dl CK-MB
  4) cerebral spinal fluid
5) troponin: i) (cardiac troponin T:   ii)  cardiac troponin I:

6)  Hematocrit

Definition

1)  23-30 mEq/L

2)   0.5%-2%

3) 30-170 units/L..male>female..exercise>rest:  Creatine phosphokinase (high levels represent damage to hear, brain, or skeletal muscle) (peak 18hrs afer injury)

4) 450 units/L

5) Both help identify heart muscle damage...better than CK-MB.....longer window of time 7-10 days post -damage....i) <0.2 ng/ml  ii)  <0.03 ng/ml

6)  37-54%

Term

1)  Specificity- measures ?

2)  Sensitivity measures?

Definition

1)  the proportion of negatives which are correctly identified (% accuracy of TRUE NEGATIVES)

2)  measures the proportion of actual positives which are correctly identified as such (% accuracy of True Positives)

Term
1) Glomerular filtration rate-
2)   Creatinine clearance testing-
Definition

1)  describes the flow rate of filtered fluid through the kidney; the best test to measure your level of kidney function and determine your stage of kidney disease

 

2) is the volume of blood plasma that is cleared of creatinine per unit time and is a useful measure for approximating the GFR.

Term
Name some reasons for prerenal ACUTE RENAL FAILURE
Definition
Pre-renal=causes in the blood supply:
1)  hypovolemia (decreased blood volume), usually from shock or dehydration and fluid loss or excessive diuretics use.
2) hepatorenal syndrome in which renal perfusion is compromised in liver failure
3) vascular problems, such as atheroembolic disease and renal vein thrombosis (which can occur as a complication of the nephrotic syndrome)
4)  infection usually sepsis, systemic inflammation due to infection
Term
Name some reasons for RENAL ACUTE RENAL FAILURE:
Definition

=damage to the kidney itself

1) toxins or medication (NSAIDS) 2) rhabdomyolysis (breakdown of muscle tissue leading to renal damage) - blunt trauma...statins  3)    hemolysis (breakdown of red blood cells) - the hemoglobin damages the tubules; •    4)  multiple myeloma, either due to hypercalcemia or "cast nephropathy"  5)  acute glomerulonephritis which may be due to a variety of causes, such as anti glomerular basement membrane disease/Goodpasture's syndrome, Wegener's granulomatosis or acute lupus nephritis with systemic lupus erythematosus

Term
Post-renal  ACUTE RENAL FAILURE (obstructive causes in the urinary tract) due to:

Definition

  1) medication interfering with normal bladder emptying (e.g. anticholinergics).
2)  benign prostatic hypertrophy or prostate cancer.
  3) kidney stones

4)  due to abdominal malignancy (e.g. ovarian cancer, colorectal cancer).
  5) obstructed urinary catheter

Term
1) The urinary tract naturally contains bacteria, which can contaminate a urine sample. The ________ method is used to prevent these bacteria from getting into the urine sample.
Definition
1)  clean-catch
Term

ACUTE RENAL FAILURE:

 

1)  creatinine level at ___ times
2) _____ >355 μmol/l (with a rise of >44)
3)  urine output below ______ for 24 h

Definition

1) 3.0

2) creatinine

0.3 ml/kg

Term
Positive Ketons in Urine indicate?
Definition
Diabetic ketoacidosis
Insulin overdose
Insufficient food intake
Nausea and vomiting
Starvation
Strict dieting
Severe stress
Severe fever due to infection
Term
Reduced specific gravity indicates?
Definition
diabetes insipidus
certain renal diseases
excess fluid intake
diabetes mellitus
Term
Raised specific gravity indicates?
Definition

dehydration
adrenal insufficiency
nephrosis
congestive cardiac-failure
Term

1)  The FMV is a single urine collection upon ____. It provides a time-average for_____ spikes that may occur during the hours of sleep (approximately 8-hours), and includes the early morning peak excretion expected in a number of hormones

2)  What is this important for?

Definition

1)  waking

 

 hormone

2)  Pregnancy Testing

Term
Abnormal leukocytes values may indicative of
Definition
kidney infection
cystitis
urethritis
Term

1)  What does the Ictotest confirm?

2)  What does a positive look like

Definition

1)Billirubin (RBC breakdown..specifically hemoglobin)

2)  Purple

Term

1)What does SSA confirmatory test look for?

2)What does a positive test look like?

Definition

1)  Proteins in Urine

2)  Hazy

Term
List the possible 4 pathological etiologies for hematuria

Definition
1)  kidney calculi
2)    bladder calculi
3)  damage to kidney
4)   damage to urinary tract
Term
•    List 4 possible causes for a false-positive result on the urine blood reagent stick
Definition
1)  oxidizing contaminants, such as hypochlorite (bleach), 2)  Contamination of the urine with provodine-iodine.. used in surgical procedures
3)  Microbial peroxide found in association with urinary tract infections may also cause false-positive results.
4)  Capoten® (Captopril) can cause decreased reactivity.
5)  The muscle tissue form of hemoglobin, myoglobin
Term

1) Define myoglobinuria 

2)  list at least 4 causes

Definition
1)  Myoglobinuria- resence of myoglobin in the urine
 
2)  
•    Trauma
•    Venom
•    Drugs
  *  Myocardial infarction
Term
1)  Define porphyrinuria 2)  and the uses of this test

Definition
1)  Porphyrinuria- The excretion of abnormal concentrations of porphyrins and related compounds in the urine; The urine is of normal color on voiding but darkens to a red-brown after exposure to light.
  2)  Importance- autism?
Term

1) Define Bence-Jones protein

2) its significance

Definition
1)  Bence-Jones protein- a monoclonal globulin protein found in the blood or urine
  2)  Finding this protein in the context of end-organ manifestations:
Term

1)  What is HCG (human chorionic gonadotropin) detected in urine usually used for?

 

2)  What else can it indicate?

Definition

1)  Hormone detected in early pregnancy

2)  hCG is an important tumor marker

Term
•    Name 4 signs and symptoms of pyelonephritis

Definition
o    Back pain
o    Fever
o    Dysuria
o    Dehydration
Term
1)  Define glomerulonephritis 2) the primary and 3) secondary causes
Definition
1) Glomerulonephritis- a renal disease characterized by inflammation of the glomeruli
  2)  Primary causes: may be caused by specific problems with the body's immune system
3)  Secondary causes:
•    Focal segmental glomerulosclerosis
•    Goodpasture syndrome
•    IgA nephropathy
•    Lupus nephritis
•    Membranoproliferative GN I
•    Membranoproliferative GN II
•    Post-streptococcal GN
•      Rapidly progressive glomerulonephritis
Term
•    Name two causes for acute epididymitis

Definition
Bacterial infections
o    STDs (mainly chlamydia)
o    Obstruction
o    Trauma
Term

1)  What is Preeclampsia?

2)  List the Diagnostic criteria for mild preeclampsia

Definition

1)  is a medical condition where hypertension arises in pregnancy (pregnancy-induced hypertension) in association with significant amounts of protein in the urine

2)  i) Pregnancy is greater than 20 weeks
ii)  Blood pressure is greater than 140 systolic or 90 diastolic
iii)  0.3g of protein is collected in a 24-hour urine sample, or persistent 1+ protein measurement on urine dipstick

Term
1) Discuss the significance of VMA 2
Definition
1) VMA (vanillylmandelic acid test) is a test used to detect pheochromocytoma, a tumor of the adrenal medulla that secretes excess cathecholamines, epinephrine and norepinephrine
Term
Pyelonephritis...what are the signs and symptoms?
Definition
It presents with dysuria (painful voiding of urine), abdominal pain (radiating to the back on the affected side) and tenderness of the bladder area and the side of the involved kidney ("renal angle tenderness") which may be elicited by performing the kidney punch. In many cases there are systemic symptoms in the form of fever, rigors (violent shivering while the temperature rises), headache and vomiting. In severe cases, delirium may be present.[1]
Term

Normal Values:

 

1) WBC=

 

2)  Hemoglobin count=

Definition

1)  4,500-10,000 cells/mL

 

2) 12.0-16.5 g/dL

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