#1
Which of the following is NOT a proper technique for collecting a urine specimen?
Using an open container with no lid
ExplanationOpen containers increase risk of contamination.
#2
What is the recommended storage temperature for a urine specimen?
4°C (39°F) or lower
ExplanationLow temperature preserves sample integrity.
#3
What is the typical volume of urine required for a routine urinalysis?
50 milliliters (mL)
ExplanationSufficient volume ensures comprehensive analysis.
#4
Which of the following factors can affect the interpretation of urine test results?
Age and gender of the individual
ExplanationBiological variables influence result interpretation.
#5
Which of the following is NOT a step in the process of collecting a clean-catch urine specimen?
Beginning to urinate into the toilet
ExplanationAvoiding toilet contamination is essential.
#6
What does it mean if a urine sample is described as 'cloudy'?
It contains bacteria or other particles
ExplanationCloudiness suggests contamination or infection.
#7
What is the typical color of urine in a healthy individual?
Yellow
ExplanationNormal urine color indicates hydration status.
#8
Which of the following factors can influence the specific gravity of urine?
All of the above
ExplanationVarious factors contribute to specific gravity.
#9
Which of the following is NOT a typical component of a urine drug screening panel?
Caffeine
ExplanationCaffeine is not commonly tested.
#10
What is the primary purpose of the creatinine clearance test?
To assess kidney function
ExplanationClearance rate indicates renal health.
#11
Which of the following is NOT a possible cause of contamination in a urine sample?
Use of a sterile container
ExplanationSterile containers reduce contamination risk.
#12
What is the purpose of adding a preservative to a urine sample?
To prevent microbial growth
ExplanationPreservatives inhibit bacterial proliferation.
#13
What is the primary purpose of a 24-hour urine collection?
To assess kidney function
ExplanationAccumulated urine provides comprehensive data.
#14
What precaution should be taken when collecting a urine sample for culture and sensitivity testing?
Collecting the sample before starting antibiotics
ExplanationAntibiotics can alter test results.
#15
What is the primary function of the kidneys in relation to urine production?
To filter waste products from the bloodstream
ExplanationKidneys remove toxins and excess substances.
#16
Which of the following substances might be present in abnormal amounts in urine during a urinalysis?
Red blood cells
ExplanationPresence indicates potential health issues.
#17
What is the primary purpose of urine culture and sensitivity testing?
To identify the presence of bacteria and fungi
ExplanationDetecting pathogens guides treatment.
#18
Which of the following is a potential indication for collecting a urine sample for a pregnancy test?
Missed menstrual period
ExplanationIndicator of possible pregnancy.
#19
What does the presence of ketones in urine indicate?
Uncontrolled diabetes
ExplanationKetones suggest metabolic imbalance.
#20
Which of the following is NOT a potential complication of urinary catheterization?
Hypotension
ExplanationCatheterization typically doesn't cause hypotension.
#21
Which of the following is a crucial step in handling a urine specimen for drug testing?
Labeling the container with the patient's information immediately after collection
ExplanationProper labeling ensures sample traceability.
#22
In which situation might a timed urine collection be required?
To measure glomerular filtration rate (GFR)
ExplanationTimed collection aids GFR assessment.
#23
What might be a reason for a urine sample to be rejected at a laboratory?
The patient's name was not written on the container
ExplanationProper identification ensures sample integrity.
#24
What is the primary function of the urethra?
To transport urine from the bladder to outside the body
ExplanationUrethra expels urine from the body.
#25
What is the primary function of the urinary bladder?
To store urine until elimination
ExplanationBladder temporarily holds urine.