AMCA Urinalysis and CLIA-Waived Laboratory Testing

Question 1

Which type of urine specimen is considered the MOST concentrated and is preferred for routine urinalysis?

Accepted Answer

First morning void

Answer

Random specimen

Answer

24-hour collection

Answer

Midstream clean-catch

Question 2

A urine dipstick test shows a positive result for nitrites. This finding MOST suggests:

Accepted Answer

A urinary tract infection caused by gram-negative bacteria

Answer

Diabetic ketoacidosis

Answer

Kidney stones

Answer

Liver disease

Question 3

Under CLIA regulations, a 'CLIA-waived' test is defined as one that:

Accepted Answer

Is cleared by the FDA as simple with minimal risk of error

Answer

Requires a licensed laboratory director to perform

Answer

Must be sent to a reference laboratory

Answer

Requires annual proficiency testing by a third party

Question 4

A midstream clean-catch urine specimen is ordered. In what order should the medical assistant instruct the female patient to perform the collection?

Accepted Answer

Cleanse, begin urinating, catch midstream in cup, finish urinating into toilet

Answer

Begin urinating into cup, cleanse, then finish into toilet

Answer

Collect all urine into the cup, then cleanse afterward

Answer

Cleanse, collect first stream into cup, discard remainder

Question 5

Urine dipstick results show a specific gravity of 1.001. This MOST likely indicates:

Accepted Answer

Very dilute urine

Answer

Highly concentrated urine

Answer

Normal hydration status

Answer

Kidney failure causing retention of solutes

Question 6

When using a urine dipstick, which step is CRITICAL to ensure accurate results?

Accepted Answer

Compare pads to the color chart at the manufacturer-specified times for each analyte

Answer

Dip the strip, then immediately read all pads at 30 seconds

Answer

Read all pads simultaneously at exactly 2 minutes

Answer

Shake excess urine off the strip vigorously before reading