FREE NHA Laboratory Procedures and Specimen Handling Questions and Answers

Question 1

What is the correct order of draw for a light blue top tube, a lavender top tube, and a serum separator tube (SST)?

Accepted Answer

Light Blue, SST, Lavender

Answer

Lavender, SST, Light Blue

Answer

SST, Lavender, Light Blue

Answer

Light Blue, Lavender, SST

Question 2

The additive in a lavender-topped collection tube is:

Accepted Answer

EDTA

Answer

Sodium Citrate

Answer

Heparin

Answer

No additive

Question 3

Which type of urine specimen is required for a culture and sensitivity test?

Accepted Answer

Clean-catch midstream specimen

Answer

Random specimen

Answer

First-morning specimen

Answer

24-hour specimen

Question 4

Which of the following is an example of a CLIA-waived test commonly performed in a medical office?

Accepted Answer

Urine pregnancy test

Answer

Blood culture analysis

Answer

Pap smear analysis

Answer

Complete blood count (CBC) with differential

Question 5

What is the most critical step in ensuring the accuracy of a laboratory result?

Accepted Answer

Properly labeling the specimen

Answer

Using the correct vacuum tube

Answer

Centrifuging the specimen at the correct speed

Answer

Transporting the specimen to the lab quickly

Question 6

When preparing a blood specimen for transport to an outside laboratory, what action should the medical assistant take?

Accepted Answer

Complete a requisition and place it in the outer pocket of the transport bag

Answer

Freeze the specimen immediately

Answer

Place the specimen in a regular paper envelope

Answer

Leave the specimen unlabeled until it arrives at the lab