CLS Urinalysis & Body Fluids UPDATED ACTUAL Questions and CORRECT Answers
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Course
Urinalysis and Body Fluids
Institution
Urinalysis And Body Fluids
CLS Urinalysis & Body Fluids UPDATED
ACTUAL Questions and CORRECT
Answers
1. After receiving a 24-hour urine for quantitative total protein analysis, the technician must first:
A. subculture the urine for bacteria
B. add the appropriate preservative
C. screen for albumin using a dipstick
D. ...
CLS Urinalysis & Body Fluids UPDATED
ACTUAL Questions and CORRECT
Answers
1. After receiving a 24-hour urine for quantitative total protein analysis, the technician must first:
A. subculture the urine for bacteria
B. add the appropriate preservative
C. screen for albumin using a dipstick
D. measure the total volume1. - CORRECT ANSWER- D
2. False results in urobilinogen testing may occur if the urine specimen is:
A. exposed to light
B. adjusted to a neutral light
C. cooled to room temp
D. collected in a non sterile container - CORRECT ANSWER- A
3. A clean catch urine is submitted to the lab for routine urinalysis and culture. The routine
urinalysis is done first, and 3 hours later, the specimen is sent to micro for culture. The specimen
should:
A. be centrifuged, and the supernatant cultured
B. be rejected due to the time delay
C. not be cultured if no bacteria are seen
D. be processed for culture only if the nitrate is positive - CORRECT ANSWER- B
4. Which of the following urine results is most apt to be changed by prolonged exposure to light?
A. pH
B. protein
C. ketones
,D. bilirubin - CORRECT ANSWER- D
5. Urine samples should be examined within 1 hour of voiding because:
A. RBCs, leukocytes and casts agglutinate on standing for several hours at room temp
B. urobilinogen increases and bilirubin decreases after prolonged exposure to light
C. bacterial contamination will cause alkalization of the urine
D. ketones will increase due to bacterial and cellular metabolism - CORRECT ANSWER- C
6. The following results were obtained on a urine specimen at 8 AM
pH: 5.5
protein: 2+
glucose: 3+
ketones: 3+
blood: neg
bilirubin: pos
nitrite: pos
If this urine specimen was stored uncapped at 5 C without preservatives and retested at 2PM,
which of the following test results would be changed due to the storage conditions:
A. glucose
B. ketones
C. protein
D. nitrite - CORRECT ANSWER- B
7. A urine specimen come to the lab 7 hours after it is obtained. I t is acceptable for culture only
if the specimen has been stored:
A. at room temp
B. at 4-7 C
C. frozen
D. with a preservative additive - CORRECT ANSWER- B
,8. Which of the following would be affected by allowing a urine specimen at room temp 3 hours
before analysis?
A. occult blood
B. specific gravity
C. pH
D. protein - CORRECT ANSWER- C
9. A 24 hour urine from a man who had no evidence of kidney impairment was sent to the lab for
hormone determination. The volume was 600 mL, but there was some question as to the
completeness of the 24 hour collection. The next step would be to:
A. preform the hormone determination, since 600 mL is a normal 24 hour urine volume
B. check the creatinine level, if it is <1g, do the procedure
C. report the hormone determination in mg/dL in case the specimen was incomplete
D. check the creatinine level, if it is >1g, do the procedure - CORRECT ANSWER- D
10. Failure to observe RBC casts in a urine specimen can be caused by:
A. staining the specimen
B. centrifuging an unmixed specimen
C. mixing the sediment after decantation
D. examining the sediment first under low power - CORRECT ANSWER- B
11. eGFR calculated by the MDRD formula takes into account the age, BUN, race, albumin and
what else for its calculation?
A. urea
B. ammonia
C. creatinine
D. cystatin C - CORRECT ANSWER- C
, 12. The creatinine clearance is reported in:
A. mg/dL
B. mg/ 24 hours
C. mL/min
D. mL/24hours - CORRECT ANSWER- C
13. Microalbumin can be measured by a random urine collection. An increased microalbumin is
predictive of:
A. diabetes mellitus
B. nephropathy
C. hypertension
D. nephrotic syndrome - CORRECT ANSWER- B
14. A patient with uncontrolled diabetes mellitus will most likely have:
A. pale urine with high specific gravity
B. concentrated urine with high specific gravity
C. pale urine with low specific gravity
D. dark urine with high specific gravity - CORRECT ANSWER- A
15. While preforming an analysis of a baby's urine, the tech notices the specimen to have a
"mousy" odor. Of the following substances that may be excreted in urine, the one that most
characteristically produces this odor is:
A. phenylpyruvic acid
B. acetone
C. coliform bacilli
D. porphyrin - CORRECT ANSWER- A
16. An ammonia-like odor is characteristically associated with urine from patients who:
a. are diabetic
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