CHEM 08 - UA and Body Fluids

  1. The primary constituent of hyaline casts is:

    B)  Tamm Horsfall protein
  2. Isosthenuria is the inability of the kidney to alter the specific gravity of the glomerular filtrate. Such a urine sample would be associated with a specific gravity:

    C)  fixed at around 1.010
  3. The colorimetric reagent strip test for protein is most sensitive towards:

    B)  Albumin
  4. The first morning urine specimen is the optimum specimen for routine urinalysis because

    C)  it is the most concentrated.
  5. A positive test for bilirubin on a reagent strip should be confirmed by:

    B)  performing an Ictotest
  6. The diluting and concentrating ability of the kidneys may be measured by performing which of the following urine tests?

    C)  Urine specific gravity
  7. On microscopic examination of a urinary sediment, round refractile globules are noted in cells encapsulated within a hyaline matrix. A polarized light microscopic exam of the urinary structure showed the globules to be birefringent in the shape of Maltese crosses. These urinary structures can be identified as:

    D)  fatty casts containing lipidladenrenal tubular cells
  8. Which of the following casts is indicative of more severe renal disease?

    A)  waxy
  9. White blood cell casts are most likely to indicate disease of the:

    D)  kidney
  10. Which of the following reagent strip tests can be affected by ascorbic acid, resulting in falsely low or negative results?

    F)  all are affected
  11. The glucose specificity of the double sequential enzyme reaction used on reagent strip tests is due to the use of

    D)  glucose oxidase.
  12. Select the best answer for the body in this image.
    Image Upload 1

    A)  oval fat bodies
  13. (T/F) Trichomonads in the urine should only be positively identified if they are motile, since they can be easily confused with white blood cells.
  14. Image Upload 2
    • -uric acid
    • -Squamous Epithelial Cell
    • -Calcium Phosphate
    • -Renal epithelial cell
    • -Triple phosphate
    • -cysteine
    • -Squamous epithelial cell
    • -Calcium oxalate
  15. A: Triple phosphate
    • B: Calcium phosphate
    • C: Squamous epithelial cell
    • D: Calcium oxalate
    • E: Cholesterol
  16. The principle of the colorimetric reagent strip test for hemoglobin is based on the peroxidase activity of hemoglobin in catalyzing the oxidation of a dye with peroxide to form a colored compound. This method may yield false negative results for the presence of hemoglobin when the urine specimen contains:

    B)  Ascorbic acid
  17. (T/F) The term oliguria refers to excessive urine output.
  18. Recurrent arthritis caused by crystalized urates in joint tissue and synovial fluid is called

    A)  gout.
  19. Which of the following conditions enhances the formation of serous fluid in a body cavity?

    C)  Increased capillary permeability
  20. Which of the following conditions would more likely be associated with the formation of a transudate?

    C) Congestive heart failure
  21. (T/F) Glucose levels in CSF are roughly 60% of serum glucose levels.
  22. The following uric acid related crystals are more likely to be found in acidic urine EXCEPT

    D)  ammonium biurate.
  23. A normal urinalysis except for specific gravity of 1.049 would most likely represent

    D)  radiographic dye.
  24. (T/F) A patient with an acute hemolytic process would likely have negative urine bilirubin and increased urine urobilinogen.
  25. (T/F) A patient with cholestatic jaundice would likely show increased urine bilirubin and normal urine urobilinogen.
  26. A urine specimen kept at room temperature overnight in a specimen pickup box would most likely show what changes in the following

    +blood (dipstick)
    +rbcs (microscopic)

    -no change
    • pH: increase
    • blood (dipstick): no change
    • rbcs (microscopic): decrease
    • glucose: decrease
    • bacteria: increased
  27. The property of matter which depends upon the polarization and direction of light is

    D)  birefringence.
  28. Fetal fibronectin is a marker to assess

    A)  premature labor.
  29. All of the following are tests that assess fetal lung maturity EXCEPT

    D)  delta OD 450.
  30. Match the testing that should be performed on the CSF tube number (#1 collected first)

    +Cell count and differential
    +CSF protein
    +Gram Stain
    • Cell count and differential: 3
    • CSF protein: 1
    • Gram stain: 2
  31. (T/F) The test for CSF total protein most commonly uses the biuret reaction with a larger sample volume than for serum.
  32. The delta OD 450 test is used to

    B)  evaluate potential hemolytic disease of the newborn by determining amniotic fluid bilirubin
  33. For each descriptor on the left, which is more likely, exudate or transudate?

    +Caused by increased hydrostatic pressure
    +More likely to include white blood cells
    +Peritoneal infection
    +Total protein (fluid) = 2.2 gm/dL
    • Caused by increased hydrostatic pressure: transudate
    • More likely to include white blood cells: exudate
    • Peritoneal infection: exudate
    • Total protein (fluid) = 2.2 gm/dL: transudate
  34. Which of the following crystal types is LEAST likely to be observed in alkaline urine?

    C)  calcium oxalate
  35. The single most diagnostic finding in acute glomerular disease is

    B)  dysmorphic rbcs.
  36. The "bumpy" objects present in this image are
    Image Upload 3

    B)  crenated rbcs
  37. The object defined by the arrows is a
    Image Upload 4

    E)  hyaline cast.
  38. Image Upload 5

    B)  yeast.
  39. Image Upload 6

    A)  waxy cast.
  40. Detection of oligoclonal bands in CSF is used for diagnosis of

    D)  multiple sclerosis.
  41. A urinalysis shows a negative nitrite, but many bacteria observed on microscopic exam. Which conditions might explain this discrepancy?
    • 1. The bacteria did not have sufficient time to form nitrite.
    • 2. The bacteria present do not form nitrite.
    • 3. The patient does not excrete enough nitrate in the urine.
    • 4. The urine is too dilute.
    • a) all are correct
    • b) 1 and 2
    • c) 1 and 3
    • d) only 4
    • e) 1, 2, and 3
    • a) all are correct
  42. Place the following cast types in order as they progress from early to late development.


    -Not in the progression
    • Waxy: 3
    • Hyaline: Not in the progression
    • Granular: 2
    • Cellular: 1
  43. The most common method of measuring sweat chloride is:

    D)  chloride meter
Card Set
CHEM 08 - UA and Body Fluids
CHEM 08 - UA and Body Fluids