MLT Urinalysis & Body Fluids BOC
1. After receiving a 24-hour urine for quantitative total protein analysis, the technician must first?:
measure the total volume
2. False results in urobilinogen testing may occur if the urine specimen is?: -
exposed to light
3. 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?: be rejected due to the time delay
4. Which of the following urine results is most apt to be changed by prolonged exposure to light?:
bilirubin
5. Urine samples should be examined within 1 hour of voiding because?: bac- terial contamination
will cause alkalinization of the urine
6. 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 at?: 4-7*C
7. Which of the following would be affected by allowing a urine specimen to remain at room
temperature for 3 hours before analysis?: pH
8. Failure to observe RBC casts in a urine specimen can be caused by?: cen- trifuging an unmixed
specimen
9. The creatinine clearance is reported in?: mL/min
10.Microalbumin can be measured by random urine collection. An increased microalbumin is
predictive of?: nephropathy
11.A patient with uncontrolled diabetes mellitus will most likely have?: pale urine with a high
1/7
, MLT Urinalysis & Body Fluids BOC
specific gravity
12.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?: phenylpyruvic acid
13.Urine that develops a port wine color after standing may contain?: por- phyrins
14.Urine from a 50 year old man was noted to turn dark red on standing, due to the formation of?:
porphyrins
15.The clarity of a urine should be determined?: following thorough mixing of the specimen
16.Milky urine from a 24 year old woman would most likely contain?: many white blood cells
17.A brown-black urine would most likely contain?: melanin
18.The yellow color of urine is primarily due to?: urochrome pigment
19.Red urine may be due to?: myoglobin
20.Urine osmolality is related to?: specific gravity
2/7
1. After receiving a 24-hour urine for quantitative total protein analysis, the technician must first?:
measure the total volume
2. False results in urobilinogen testing may occur if the urine specimen is?: -
exposed to light
3. 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?: be rejected due to the time delay
4. Which of the following urine results is most apt to be changed by prolonged exposure to light?:
bilirubin
5. Urine samples should be examined within 1 hour of voiding because?: bac- terial contamination
will cause alkalinization of the urine
6. 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 at?: 4-7*C
7. Which of the following would be affected by allowing a urine specimen to remain at room
temperature for 3 hours before analysis?: pH
8. Failure to observe RBC casts in a urine specimen can be caused by?: cen- trifuging an unmixed
specimen
9. The creatinine clearance is reported in?: mL/min
10.Microalbumin can be measured by random urine collection. An increased microalbumin is
predictive of?: nephropathy
11.A patient with uncontrolled diabetes mellitus will most likely have?: pale urine with a high
1/7
, MLT Urinalysis & Body Fluids BOC
specific gravity
12.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?: phenylpyruvic acid
13.Urine that develops a port wine color after standing may contain?: por- phyrins
14.Urine from a 50 year old man was noted to turn dark red on standing, due to the formation of?:
porphyrins
15.The clarity of a urine should be determined?: following thorough mixing of the specimen
16.Milky urine from a 24 year old woman would most likely contain?: many white blood cells
17.A brown-black urine would most likely contain?: melanin
18.The yellow color of urine is primarily due to?: urochrome pigment
19.Red urine may be due to?: myoglobin
20.Urine osmolality is related to?: specific gravity
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