#1
Which of the following is NOT a proper step in urine specimen collection?
Proper labeling of the specimen container
Collection of the first void urine sample
Using an unclean container for collection
Ensuring the specimen is transported to the lab in a timely manner
#2
What is the recommended duration for holding urine specimens before testing?
Up to 12 hours
Up to 24 hours
Up to 48 hours
Up to 72 hours
#3
Which of the following is a common preservative used in urine specimen containers?
Sodium hypochlorite
Sodium chloride
Boric acid
Calcium carbonate
#4
Which of the following is a common reason for rejecting a urine specimen in the laboratory?
Specimen collected in a transparent container
Specimen transported without proper labeling
Specimen collected in a non-sterile container
Specimen collected from a clean-catch method
#5
What is the typical volume of urine required for routine urinalysis?
5 milliliters
10 milliliters
15 milliliters
20 milliliters
#6
Which of the following is an appropriate technique for collecting a 24-hour urine specimen?
Discard the first morning void and start collecting urine after that
Collect all urine for 24 hours, starting with the first void in the morning
Collect only urine samples from specific times during the day
Collect urine samples from random times during the day and night
#7
What is the purpose of adding preservatives to urine specimens?
To enhance the color of urine
To prevent bacterial growth and maintain specimen integrity
To adjust the pH level of urine
To increase the volume of urine collected
#8
What is the primary purpose of midstream urine collection?
To ensure the patient is properly hydrated
To collect urine for culture and sensitivity testing
To measure urine specific gravity
To assess urinary tract infections
#9
Which of the following is NOT a proper handling technique for urine specimens?
Shaking the specimen vigorously before testing
Properly sealing the specimen container
Storing the specimen at the appropriate temperature
Ensuring proper documentation of collection time and date
#10
What is the recommended storage temperature for urine specimens before analysis?
Room temperature (20-25°C)
Refrigerated (2-8°C)
Frozen (-20°C)
Heated (37°C)
#11
What does the term 'clean-catch' urine specimen collection refer to?
Collection of urine in a sterile container
Collection of the first void urine sample
Collection of urine midstream after cleansing the urethral meatus
Collection of urine directly from the urinary catheter
#12
Which of the following tests is NOT commonly performed on urine specimens?
Urinalysis
Culture and sensitivity testing
Electrolyte panel
Hemoglobin A1c measurement
#13
Which of the following factors may cause false-positive results in urine drug screening tests?
Cross-reactivity with certain medications
Improper storage temperature
Sample dilution
Collection in a clean-catch container
#14
What is the purpose of urine cytology testing?
To detect the presence of bacteria in urine
To assess the concentration of electrolytes in urine
To identify abnormal cells in urine samples
To measure the pH level of urine
#15
Which of the following factors can affect the accuracy of urine test results?
Time of day the specimen is collected
Patient's age and gender
Medications the patient is taking
All of the above
#16
What is the significance of specific gravity measurement in urine specimens?
To determine the acidity or alkalinity of urine
To assess the concentration of solutes in urine
To identify the presence of bacteria in urine
To measure the volume of urine produced in a given time
#17
Which of the following substances should be avoided by the patient before providing a urine specimen for drug testing?
Water
Caffeine
Fruit juice
Vegetables
#18
Which of the following substances can cause a false-positive result for glucose in urine?
Protein
Ascorbic acid (Vitamin C)
Bilirubin
Ketones
#19
Which of the following conditions can lead to a decrease in urine output (oliguria)?
Diabetes insipidus
Renal artery stenosis
Heart failure
Hyperaldosteronism