Clinical Microscopy (Analysis Of Urine And Other Body Fluids)

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Clinical Microscopy (Analysis Of Urine And Other Body Fluids) - Quiz


Questions and Answers
  • 1. 
    The fluid leaving the glomerulus has a specific gravity of:
    • A. 

      1.005

    • B. 

      1.010

    • C. 

      1.015

    • D. 

      1.020

  • 2. 
    The average total volume of urine produced by a normal adult every 24 hours is about:
    • A. 

      750

    • B. 

      1200

    • C. 

      2000

    • D. 

      2400

  • 3. 
    The primary chemical affected by the renin-angiotensin-aldosterone system is:
    • A. 

      Chloride

    • B. 

      Sodium

    • C. 

      Potassium

    • D. 

      Hydrogen

  • 4. 
    An abnormal decrease in urine production is called:
    • A. 

      Anuria

    • B. 

      Oliguria

    • C. 

      Polyuria

    • D. 

      Dysuria

  • 5. 
    Cloudiness in a freshly-voided urine could indicate the presence of:
    • A. 

      Protein

    • B. 

      Sugar

    • C. 

      WBCs

    • D. 

      Any of these

  • 6. 
    What are the variables included in the Cockgroft and Gault formula for creatinine clearance? 1. Age           3. Urine creatinine 2. Sex           4. Body weight
    • A. 

      1, 2 and 3

    • B. 

      1 and 3

    • C. 

      1, 2 and 4

    • D. 

      1, 2, 3 and 4

  • 7. 
    Which of these plasma substances is NOT normally filtered through the glomerulus in significant amounts?
    • A. 

      Protein

    • B. 

      Glucose

    • C. 

      Creatinine

    • D. 

      Urea

  • 8. 
    Which term is defined as a urine volume in excess of 2000 mL excreted over a 24-hour period?
    • A. 

      Anuria

    • B. 

      Oliguria

    • C. 

      Polyuria

    • D. 

      Hypersthenuria

  • 9. 
    Which term is defined as a urine volume in excess of 2000 mL excreted over a 24-hour period?
    • A. 

      Anuria

    • B. 

      Oliguria

    • C. 

      Polyuria

    • D. 

      Hypersthenuria

  • 10. 
    Why is the first-voided morning urine specimen the most desirable specimen for routine urinalysis?
    • A. 

      Most dilute specimen of the day

    • B. 

      Less contamination by microorganisms

    • C. 

      It can detect orthostatic proteinuria

    • D. 

      Most concentrated specimen of the day

  • 11. 
    Freshly voided normal urine is usually clear; however, if it is alkaline, a white turbidity may be present due to:
    • A. 

      Yeast cells

    • B. 

      Uroerythrin

    • C. 

      WBCs

    • D. 

      Amorphous phosphates

  • 12. 
    A strong odor of cabbage in a urine specimen could indicate:
    • A. 

      Methionine malabsorption

    • B. 

      Trimethylaminuria

    • C. 

      Phenylketonuria

    • D. 

      Tyrosyluria

  • 13. 
    A specimen with a strong ammonia odor and a heavy white precipitate when it arrives in the laboratory may require:
    • A. 

      Collection of a fresh specimen

    • B. 

      Centrifugation

    • C. 

      Dilution for specific gravity

    • D. 

      Testing under a hood

  • 14. 
    A correlation exists between a specific gravity of 1.050 and a:
    • A. 

      2+ protein

    • B. 

      2+ glucose

    • C. 

      Radiographic dye infusion

    • D. 

      First morning specimen

  • 15. 
    A yellow-brown specimen that produces a yellow foam when shaken can be suspected of containing:
    • A. 

      Carrots

    • B. 

      Hemoglobin

    • C. 

      Rhubarb

    • D. 

      Bilirubin

  • 16. 
    A patient with a 1+ protein reading in the afternoon is asked to submit a first morning specimen. The second specimen also has a 1+ protein. This patient is:
    • A. 

      Positive for orthostatic proteinuria

    • B. 

      Negative for orthostatic proteinuria

    • C. 

      Positive for Bence Jones proteinuria

    • D. 

      Negative for clinical proteinuria

  • 17. 
    Urinalysis on a patient with severe back and abnominal pain is frequently performed to check for:
    • A. 

      Bilirubinuria

    • B. 

      Proteinuria

    • C. 

      Hematuria

    • D. 

      Hemoglobinuria

  • 18. 
    Reagent strip – specific gravity readings are affected by:
    • A. 

      Glucose

    • B. 

      Radiographic dye

    • C. 

      Alkaline urine

    • D. 

      All of the above

  • 19. 
    The reagent strip reaction that requires the longest reaction time is:
    • A. 

      Bilirubin

    • B. 

      Leukocyte esterase

    • C. 

      PH

    • D. 

      Glucose

  • 20. 
    The enzyme dipstick test for glucose has a sensitivity of:
    • A. 

      10 mg/dL

    • B. 

      50 mg/dL

    • C. 

      100 mg/dL

    • D. 

      200 mg/dL

  • 21. 
    Which of the following is true of the detection of urinary glucose?
    • A. 

      Any reducing substance can give a false positive reaction w/ copper reduction test for glucose

    • B. 

      The copper reduction method is specific for glucose

    • C. 

      Glucose cannot appear in the urine in the absence of elevated plasma glucose

    • D. 

      Ketonuria may produce a false positive dipstick test for glucose

  • 22. 
    Which of the reagents below is used to detect urobilinogen in urine?
    • A. 

      P-Dinitrobenzene

    • B. 

      P-Aminosalicylate

    • C. 

      P-Dichloroaniline

    • D. 

      P-Dimethylaminobenzaldehyde

  • 23. 
    All of the statements below regarding urine bilirubin tests are true EXCEPT:
    • A. 

      A positive test indicates either liver or hepatobiliary disease

    • B. 

      The test detects only conjugated bilirubin

    • C. 

      High levels of ascorbate usually do not interfere

    • D. 

      Standing urine may become falsely negative due to bacterial hydrolysis

  • 24. 
    A positive test for blood in urine can occur in the following EXCEPT:
    • A. 

      Extravascular hemolytic anemia

    • B. 

      Crush injury

    • C. 

      Malignancy of the kidney or urinary system

    • D. 

      Renal calculi

  • 25. 
    Which of the following is the major organic substance found in urine?
    • A. 

      Sodium

    • B. 

      Glucose

    • C. 

      Chloride

    • D. 

      Urea

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