Urinalysis and Body Fluids Exam With Verified Questions and Answers
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Course
Urinalysis and Body Fluids
Institution
Urinalysis And Body Fluids
Urinalysis and Body Fluids Exam With
Verified Questions and Answers
After receiving a 24-hour urine for quantitative total protein analysis, the technician must first: -
answerMeasure the total volume
False results in urobilinogen testing may occur if the urine specimen is: - answerExposed to
...
Urinalysis and Body Fluids Exam With
Verified Questions and Answers
After receiving a 24-hour urine for quantitative total protein analysis, the technician must first: -
answer✔✔Measure the total volume
False results in urobilinogen testing may occur if the urine specimen is: - answer✔✔Exposed to
light
A 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: - answer✔✔Be rejected due to the time delay
Which of the following urine results is most apt to be changed by prolonged exposure to light? -
answer✔✔Bilirubin
Urine samples should be examined within 1 hour of voiding because: - answer✔✔Bacterial
contamination will cause alkalinization of the urine
A urine specimen comes to the laboratory 7 hours after it is obtained. It is acceptable for culture
only if the specimen has been stored: - answer✔✔At 4*-7*C
Which of the following would be affected by allowing a urine specimen to remain at room
temperature for 3 hours before analysis? - answer✔✔pH
Failure to observe RBC casts in a urine specimen can be caused by: - answer✔✔Centrifuging an
unmixed specimen
The creatinine clearance is reported in: - answer✔✔mL/min
Microalbumin can be measured by a random urine collection. An increased microalbumin is
predictive of: - answer✔✔Nephropathy
A patient with uncontrolled diabetes mellitus will most likely have: - answer✔✔Pale urine with a
high specific gravity
While performing an analysis of a baby's urine, the technologist 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: - answer✔✔Phenylpyruvic acid
Urine that develops a port wine color after standing may contain: - answer✔✔Porphyrins
Urine from a 50-year-old man was noted to turn dark red on standing. This change is caused by:
- answer✔✔Porphyrins
The clarity of a urine sample should be determined: - answer✔✔Following thorough mixing of
the specimen
Milky urine from a 24-year-old woman would most likely contain: - answer✔✔Many white
blood cells
A brown-black urine would most likely contain: - answer✔✔Melanin
The yellow color of urine is primarily due to: - answer✔✔Urochrome pigment
Red urine may be due to: - answer✔✔Myoglobin
Urine osmolality is related to: - answer✔✔Specific gravity
Urine specific gravity is an index of the ability of the kidney to: - answer✔✔Concentrate the
urine
Osmolality is a measure of: - answer✔✔Dissolved particles, including ions
To prepare a solution appropriate for quality control of the refractometer, a technician should
use: - answer✔✔Sodium chloride with a specific gravity of 1.022
A urine's specific gravity is directly proportional to its: - answer✔✔Dissolved solids
Use of a refractometer over a urinometer is preferred due to the fact that the refractometer uses: -
answer✔✔Small volume of urine and compensates for temperature
The method of choice for performing a specific gravity measurement of urine following
administration of x-ray contrast dyes is: - answer✔✔Reagent strip
Upon standing at room temperature, a urine pH typically: - answer✔✔Increases
Urine reagent strips should be stored in a(n): - answer✔✔Cool dry area
The protein section of the urine reagent strip is most sensitive to: - answer✔✔Albumin
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