CNA CNA Medical Lab and Specimen Collection Skills 3

Question 1

A wound culture has been ordered. What is the CNA's role in this procedure?

Accepted Answer

Gather supplies, provide privacy, and assist as directed by the nurse

Answer

Collect the wound culture independently using a sterile swab

Answer

Perform the wound culture only if trained and competency-verified

Answer

Wound cultures are always done by the physician — CNAs have no role

Question 2

What is the correct action when a urine specimen cannot be sent to the lab immediately after collection?

Accepted Answer

Refrigerate the specimen and transport within 2 hours

Answer

Leave it at room temperature for up to 4 hours

Answer

Add a preservative tablet regardless of test type

Answer

Collect a new specimen — delayed specimens are always discarded

Question 3

What information is typically included on the laboratory requisition form that accompanies a specimen?

Accepted Answer

Patient name, DOB, test ordered, collection date/time, and ordering physician

Answer

Only the patient name and room number

Answer

The test ordered and specimen type only

Answer

Patient name and insurance information only

Question 4

Standard precautions apply to which of the following?

Accepted Answer

All patients regardless of their diagnosis or known infection status

Answer

Only patients with known infectious diseases

Answer

Only patients in isolation rooms

Answer

Only when a patient has blood or stool contact

Question 5

A CNA is collecting a urine specimen and notices the urine is dark brown and has a strong odor. What should the CNA do?

Accepted Answer

Collect the specimen, note the observations, and report to the nurse

Answer

Discard the specimen because it appears abnormal

Answer

Add more water to the specimen to normalize the color

Answer

Collect the specimen but do not report the abnormal appearance

Question 6

After removing gloves following specimen collection, the CNA notices a small tear in the glove. The CNA's skin was not visibly contaminated. What is the correct action?

Accepted Answer

Wash hands thoroughly with soap and water and report to the nurse

Answer

Apply hand sanitizer only since skin appears uncontaminated

Answer

Report it only if the patient has a known infectious disease

Answer

No action needed if skin appears intact and not contaminated

Question 7

A patient's blood glucose reading must be documented. Which information is MOST important to record?

Accepted Answer

The exact numerical reading, date, time of collection, and the patient's symptoms

Answer

Only the date and reading value

Answer

The reading and whether it was high or low

Answer

The date, time, and type of glucometer used