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Quiz

Urinanalysis

Louisa Bauer 40 Fragen

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  1. 1After receiving a 24-hour urine for quantitative total protein analysis, the technician must first:
    1. Asubculture the urine for bacteria
    2. Badd the appropriate preservative
    3. Cscreen for albumin using a dipstick
    4. Dmeasure the total volume
  2. 2False results in urobilinogen testing may occur if the urine specimen is:
    1. AExposed to light
    2. BAdjusted to a neutral pH
    3. CCooled to room temperature
    4. DCollected in a non sterile container
  3. 3A clean-catch urine is submitted to the laboratory for routine urinalysis and culture. The routine urinalysis is done first, and 3 hours later, the specimen is sent to the microbiology department for culture. The specimen should:
    1. Abe centrifuged, and the supernatant cultured
    2. Bbe rejected due to the time delay
    3. Cnot be cultured if no bacteria are seen
    4. Dbe processed for culture only if the nitrate is positive
  4. 4Which of the following urine results is most apt to be changed by prolonged exposure to light
    1. ApH
    2. Bprotein
    3. Cketones
    4. Dbilirubin
  5. 5Urine samples should be examined within 1 hour of voiding because
    1. ARBCs, leukocytes and cast agglutinate on standing for several hours at room temperature
    2. Burobilinogen increases and bilirubin decreases after prolonged exposure to light
    3. Cbacterial contamination will cause arlkalinization of the urine
    4. Dketones will increase due to bacterial and cellular metabolism
  6. 6If this urine specimen was stored uncapped at 5°C without preservation and retested at 2 PM, which of the following test results would be changed due to these storage conditions? Bild zu Frage 6
    1. AGlucose
    2. BKetones
    3. CProtein
    4. DNitrite
  7. 7A urine specimen comes to the laboratory 7 hours after it is obtained. It is acceptable for culture only if the specimen has be stored
    1. Aat room temperature
    2. Bat 4°-7°C
    3. Cfrozen
    4. Dwith a preservative additive
  8. 8Which of the following would be affected by allowing a urine specimen to remain at room temperature for 3 hours before analysis?
    1. AOccult blood
    2. BSpecific gravity
    3. CpH
    4. DProtein
  9. 9A 24-hour urine from a man who had no evidence of kidney impairment was sent to the laboratory for hormone determination. The volume was 600ml, but there was some question as to the completeness of the 24-hour collection. The next step would be to
    1. Aperform the hormone determination, since 600ml is a normal 24-hour urine volume
    2. Bcheck the creatinine level; if it is <1g, do the procedure
    3. CReport the hormone determination in mg/dl in case the specimen was incomplete
    4. Dcheck the creatinine level, if it is >1g, do the procedure
  10. 10Failure to observe RBC casts in a urine specimen can by caused by
    1. AStaining the specimen
    2. BCentrifuging an unmixed specimen
    3. CMixing the sediment after decantation
    4. DExamining the sediment first under low power

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Quiz am Urinanalysis, erstellt von Louisa Bauer am 23/11/2022.
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