Test Bank For Urinalysis and Body Fluids, 7th
Edition All Chapters 1-17| LATEST
After receiving a 24 hour urine for quantitative total protein analysis, the technician must first:
A. subculture the urine for bacteria
B. add the appropriate preservative
C. screen for albumin using a dipstick
D. measure the total volume - ANSWERSmeasure the total volume
False results in urobilinogen testing may occur if the urine specimen is:
A. exposed to light
B. adjusted to a neutral pH
C. cooled to room temperature
D. collected in a nonsterile container - ANSWERSexposed 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:
A. be centrifuged, and the supernatant cultured
B. be rejected due to time delay
C. not be cultured if no bacteria are seen
D. be processed for culture only if the nitrate is positive - ANSWERSbe rejected due to the time
delay
Which of the following urine results is most apt to be changed by proloinged exposure to light?
A. pH
B. protein
,C. ketones
D. bilirubin - ANSWERSbilirubin
Urine samples should be examined within 1 hour of voiding because:
A. RBCs, leukocytes and casts agglutinate on standing for several hours at room temperature
B. urobilinogen increases and bilirubin decreases after prolonged exposure to light
C. bacterial contamination will cause alkalinization of the urine
D. ketones will increase due to bacterial and cellular metabolism - ANSWERSbacterial
contamination will cause alkalinization of the urine
A urine speciment comes to the laboratory 7 hours after it is obtained. It is acceptable for
culture only if the specimen has been stored:
A. at room temperature
B. at 4-7 degrees C
C. frozen
D. with a preservative additive - ANSWERS4-7*C
Which of the following would be affected by allowing a urine specimen to remain at room
temperature for 3 hours before analysis?
A. occult blood
B. specific gravity
C. pH
D. protein - ANSWERSpH
Failure to observe RBC casts in a urine specimen can be caused by:
A. staining the specimen
B. centrifuging an unmixed specimen
,C. mixing the sediment after decantation
D. examining the sediment first under low power - ANSWERScentrifuging an unmixed specimen
The creatinine clearance is reported in:
A. mg/dL
B. mg/24 hours
C. mL/min
D. mL/24 hours - ANSWERSmL/min
Microalbumin can be measured by a random urine collection. An increase microalbumin is
predictive of:
A. diabetes mellitus
B. nephropathy
C. hypertension
D. nephrotic syndrome - ANSWERSnephropathy
A patient with uncontrolled diabetes mellitus will most likely have:
A. pale urine with a high specific gravity
B. concentrated urine with a high specific gravity
C. pale urine with a low specific gravity
D. dark urine with a high specific gravity - ANSWERSpale 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:
A. phenylpyruvic acid
B. acetone
, C. coliform bacilli
D. porphyrin - ANSWERSphenylpyruvic acid
Urine that develops a port wine color after standing may contain:
A. melanin
B. porphyrins
C. bilirubin
D. urobilinogen - ANSWERSporphyrins
Urine from a 50-year-old man was noted to turn dark red on standing. This change is caused by:
A. glucose
B. porphyrins
C. urochrome
D. creatinine - ANSWERSporphyrins
The clarity of a urine sample should be determined:
A. using glass tubes only; never plastic
B. following thorough mixing of the specimen
C. after addition of sulfosalicylic acid
D. after the specimen cools to room temperature - ANSWERSfollowing thorough mixing of the
specimen
Milky urine from a 24-year-old woman would most likely contain:
A. spermatozoa
B. many white blood cells
C. red blood cells
Edition All Chapters 1-17| LATEST
After receiving a 24 hour urine for quantitative total protein analysis, the technician must first:
A. subculture the urine for bacteria
B. add the appropriate preservative
C. screen for albumin using a dipstick
D. measure the total volume - ANSWERSmeasure the total volume
False results in urobilinogen testing may occur if the urine specimen is:
A. exposed to light
B. adjusted to a neutral pH
C. cooled to room temperature
D. collected in a nonsterile container - ANSWERSexposed 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:
A. be centrifuged, and the supernatant cultured
B. be rejected due to time delay
C. not be cultured if no bacteria are seen
D. be processed for culture only if the nitrate is positive - ANSWERSbe rejected due to the time
delay
Which of the following urine results is most apt to be changed by proloinged exposure to light?
A. pH
B. protein
,C. ketones
D. bilirubin - ANSWERSbilirubin
Urine samples should be examined within 1 hour of voiding because:
A. RBCs, leukocytes and casts agglutinate on standing for several hours at room temperature
B. urobilinogen increases and bilirubin decreases after prolonged exposure to light
C. bacterial contamination will cause alkalinization of the urine
D. ketones will increase due to bacterial and cellular metabolism - ANSWERSbacterial
contamination will cause alkalinization of the urine
A urine speciment comes to the laboratory 7 hours after it is obtained. It is acceptable for
culture only if the specimen has been stored:
A. at room temperature
B. at 4-7 degrees C
C. frozen
D. with a preservative additive - ANSWERS4-7*C
Which of the following would be affected by allowing a urine specimen to remain at room
temperature for 3 hours before analysis?
A. occult blood
B. specific gravity
C. pH
D. protein - ANSWERSpH
Failure to observe RBC casts in a urine specimen can be caused by:
A. staining the specimen
B. centrifuging an unmixed specimen
,C. mixing the sediment after decantation
D. examining the sediment first under low power - ANSWERScentrifuging an unmixed specimen
The creatinine clearance is reported in:
A. mg/dL
B. mg/24 hours
C. mL/min
D. mL/24 hours - ANSWERSmL/min
Microalbumin can be measured by a random urine collection. An increase microalbumin is
predictive of:
A. diabetes mellitus
B. nephropathy
C. hypertension
D. nephrotic syndrome - ANSWERSnephropathy
A patient with uncontrolled diabetes mellitus will most likely have:
A. pale urine with a high specific gravity
B. concentrated urine with a high specific gravity
C. pale urine with a low specific gravity
D. dark urine with a high specific gravity - ANSWERSpale 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:
A. phenylpyruvic acid
B. acetone
, C. coliform bacilli
D. porphyrin - ANSWERSphenylpyruvic acid
Urine that develops a port wine color after standing may contain:
A. melanin
B. porphyrins
C. bilirubin
D. urobilinogen - ANSWERSporphyrins
Urine from a 50-year-old man was noted to turn dark red on standing. This change is caused by:
A. glucose
B. porphyrins
C. urochrome
D. creatinine - ANSWERSporphyrins
The clarity of a urine sample should be determined:
A. using glass tubes only; never plastic
B. following thorough mixing of the specimen
C. after addition of sulfosalicylic acid
D. after the specimen cools to room temperature - ANSWERSfollowing thorough mixing of the
specimen
Milky urine from a 24-year-old woman would most likely contain:
A. spermatozoa
B. many white blood cells
C. red blood cells
