NCCT - National Certified Phlebotomy Technician Equipment, Tubes, and Additives Questions and Answers

Question 1

A phlebotomist is preparing for a routine venipuncture on an adult patient with good veins. Which of the following needle gauges is most commonly used for this type of procedure?

Accepted Answer

21 gauge

Answer

16 gauge

Answer

25 gauge

Answer

18 gauge

Question 2

A physician orders coagulation studies, including a Prothrombin Time (PT) and Activated Partial Thromboplastin Time (aPTT). Which color top tube should the phlebotomist select for this collection?

Accepted Answer

Light Blue

Answer

Lavender

Answer

Green

Answer

Red

Question 3

Which of the following additives is an anticoagulant that works by binding calcium, thereby inhibiting the coagulation cascade?

Accepted Answer

EDTA

Answer

Silica

Answer

Thrombin

Answer

Heparin

Question 4

A phlebotomist is tasked with drawing blood for a Complete Blood Count (CBC), a chemistry panel (serum), and a coagulation test. What is the correct CLSI-recommended order of draw for these tests?

Accepted Answer

Light Blue tube, Serum tube, Lavender tube

Answer

Serum tube, Lavender tube, Light Blue tube

Answer

Lavender tube, Light Blue tube, Serum tube

Answer

Serum tube, Light Blue tube, Lavender tube

Question 5

A phlebotomist needs to collect a sample for glucose testing, and there may be a delay in processing. Which tube contains a glycolytic inhibitor to preserve the glucose levels in the sample?

Accepted Answer

Gray top tube

Answer

Green top tube

Answer

Lavender top tube

Answer

Red top tube

Question 6

During a venipuncture procedure, which piece of equipment is used to make the veins more prominent and easier to locate by restricting venous blood flow?

Accepted Answer

Tourniquet

Answer

Needle Holder

Answer

Gauze Pad

Answer

Alcohol Wipe