NRCMA Laboratory Procedures

Question 1

A fasting blood glucose level of 126 mg/dL or higher on two separate occasions indicates:

Accepted Answer

Diabetes mellitus

Answer

Hypoglycemia

Answer

Pre-diabetes (impaired fasting glucose)

Answer

Normal glucose metabolism

Question 2

When collecting a clean-catch midstream urine specimen, the patient should:

Accepted Answer

Clean the urethral meatus, discard initial flow, then collect midstream

Answer

Collect the entire void in the cup

Answer

Collect only the final portion of the void

Answer

Use a catheter to obtain the sample

Question 3

The hemoglobin A1C test measures:

Accepted Answer

Average blood glucose over the preceding 2–3 months

Answer

Immediate blood glucose at time of blood draw

Answer

Urine glucose concentration

Answer

White blood cell response to glucose

Question 4

In a complete blood count (CBC), a differential WBC count identifies:

Accepted Answer

The percentage and type of each white blood cell in the sample

Answer

The total number of red blood cells

Answer

Platelet morphology

Answer

Hemoglobin and hematocrit values

Question 5

Which color-coded evacuated tube top is used for coagulation studies (PT/INR, aPTT)?

Accepted Answer

Light blue (sodium citrate)

Answer

Red/gold (SST)

Answer

Lavender/purple (EDTA)

Answer

Green (lithium heparin)

Question 6

A urine dipstick positive for both nitrites and leukocyte esterase most likely indicates:

Accepted Answer

Urinary tract infection (UTI)

Answer

Renal calculi (kidney stones)

Answer

Nephrotic syndrome

Answer

Dehydration