Laboratory Procedures Flashcards
7 cards from real CCMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Laboratory Procedures flashcards as text
Which of the following is considered a CLIA-waived test that a CCMA may perform?
Answer: Urine dipstick urinalysis
Urine dipstick urinalysis is classified as a CLIA-waived test, meaning it carries low risk of error and can be performed by a trained CCMA without a laboratory director on-site.
When collecting a midstream clean-catch urine specimen, which instruction should the medical assistant give the patient?
Answer: Clean the urethral area, void a small amount into the toilet, then collect midstream into the container
A midstream clean-catch specimen requires cleaning the urethral meatus first, voiding the initial stream to flush contaminants, then collecting the midstream urine to reduce bacterial contamination.
A urine specific gravity of 1.030 would indicate:
Answer: Highly concentrated urine
Normal urine specific gravity ranges from 1.005 to 1.030; a reading of 1.030 indicates highly concentrated urine, often seen with dehydration or fluid restriction.
What color change on a urine dipstick indicates the presence of blood (hematuria)?
Answer: Tan to pink or dark green
The blood pad on a urine dipstick turns from tan to pink or dark green in the presence of hemoglobin or myoglobin, indicating hematuria or hemoglobinuria.
Which preservative is most commonly added to a 24-hour urine collection to prevent bacterial growth?
Answer: Hydrochloric acid (HCl)
Hydrochloric acid (HCl) is commonly used as a preservative in 24-hour urine collections to inhibit bacterial growth and preserve certain analytes such as catecholamines.
A point-of-care blood glucose result of 52 mg/dL would indicate:
Answer: Hypoglycemia
A blood glucose level of 52 mg/dL is below the normal fasting range of 70–99 mg/dL, indicating hypoglycemia, which requires immediate clinical intervention.
Which of the following is the correct order of steps when performing a urine dipstick test?
Answer: Dip strip in urine, remove and blot edge, wait required time, compare to color chart
The correct procedure is to dip the strip, remove and blot the edge to prevent color mixing, wait the time specified by the manufacturer, then compare results to the color chart.