Certified Phlebotomy Technician Exam Special Specimen Collections 2

Question 1

When collecting a blood culture specimen, how should the venipuncture site be cleaned?

Accepted Answer

Chlorhexidine or iodine scrub followed by alcohol

Answer

Blood culture sites require a two-step antiseptic prep using chlorhexidine gluconate or povidone-iodine followed by 70% isopropyl alcohol to reduce contamination risk.

Question 2

A glucose tolerance test (GTT) requires the patient to fast for how long before the test begins?

Accepted Answer

8–12 hours

Answer

Patients must fast for 8–12 hours before a GTT to establish a true baseline fasting glucose level.

Question 3

Which tube is inoculated FIRST when collecting blood cultures using a butterfly needle?

Accepted Answer

Aerobic bottle

Answer

With a butterfly needle, the aerobic bottle is inoculated first because air in the tubing fills it, preventing air from entering the anaerobic bottle.

Question 4

A 24-hour urine collection requires the patient to discard which specimen?

Accepted Answer

The first morning void at the start of collection

Answer

The first morning void is discarded to clear the bladder, and then the 24-hour timing begins with all subsequent voids collected.

Question 5

Which of the following is the correct method for collecting a neonatal bilirubin specimen?

Accepted Answer

Heel stick collected into an amber microtainer

Answer

Neonatal bilirubin is collected via heel stick into an amber (light-protected) microtainer because bilirubin degrades rapidly when exposed to light.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Special Specimen Collections 2