ASCP urinalysis & body fluids Exam | Study Questions Solved 100%
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Course
ASCP
Institution
ASCP
What values increase as a result of prolonged sitting of urine specimens? - ANSWER nitrite
(bacterial growth), pH (urea is converted into ammonia), turbidity (bacterial growth/amorphous
material)
What values decrease as a result of prolonged sitting of urine specimens? - ANSWER
glucose (glycoly...
ASCP urinalysis & body fluids Exam |
Study Questions Solved 100%
What values increase as a result of prolonged sitting of urine specimens? - ANSWER nitrite
(bacterial growth), pH (urea is converted into ammonia), turbidity (bacterial growth/amorphous
material)
What values decrease as a result of prolonged sitting of urine specimens? - ANSWER
glucose (glycolysis due to bacteria/yeast), ketones (volatization), bilirubin (exposure to
light), urobilinogen (oxidation), cells/casts (lysis)
Urines can be preserved for how long? - ANSWER 24 hours
What is the preservation method of choice for urines? - ANSWER refrigeration
What may result if urines are preserved in a refrigerator? - ANSWER precipitation of amorphous
crystals
A fruity odor associated with urine can be attributed to the presence? - ANSWER ketones
An ammonia-like odor associated with urine can be attributed to? - ANSWER the age of
the urine (old)
A mousy odor associated with urine can be attributed to what condition? - ANSWER PKU
(phenylketonuria)
A maple syrup like odor associated with urine can be attributed to what condition? -
ANSWER maple syrup disease
What compound gives urine its normal color? - ANSWER urochrome
, What type of urine specimen may be more on the alkaline side? - ANSWER postprandial
(2 hours after eating)
What is the typical pH of a normal urine? - ANSWER 6.0
The pH of a random urine can range from? - ANSWER 4.5 - 8.0
What can cause a urine to be cloudy? - ANSWER cells, casts, crystals, bacteria
The presence of what substances can cause urine to appear more red? - ANSWER hemoglobin,
RBCs, myoglobin, porphyrin, uroerythrin
The presence of what substances can cause urine to appear more red-brown? - ANSWER
hemoglobin, RBCs, myoglobin
The presence of what substances can cause urine to appear more yellow-brown/amber-yellow-
green? - ANSWER bilirubin, biliverdin
The presence of what substance can cause urine to appear more yellow-orange? - ANSWER
bilirubin, urobilin, pyridium (drug)
The presence of what substances can cause urine to appear bright yellow? - ANSWER vitamin C
The presence of what substances can cause urine to appear dark yellow? - ANSWER
concentrated specimen, bilirubin, urobilin
The presence of what substances can cause urine to appear brown-black? - ANSWER
methemoglobin (oxidized RBCs), homogentistic acid (alkaptonuria), melanin
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