ASCP Orders and Equipment Selection 3

Question 1

Which tube additive is an antiglycolytic agent that preserves glucose levels in blood specimens?

Accepted Answer

Sodium fluoride

Answer

EDTA

Answer

Lithium heparin

Answer

Sodium citrate

Question 2

What is the primary purpose of a tourniquet during venipuncture?

Accepted Answer

To enlarge veins by restricting venous blood flow

Answer

To stop blood flow completely to the arm

Answer

To increase arterial blood pressure

Answer

To prevent hematoma formation

Question 3

A blood collection tube has lost its vacuum. What is the correct action?

Accepted Answer

Discard the tube and use a new one

Answer

Push harder on the tube to reseat it on the needle

Answer

Use a syringe to add vacuum through the stopper

Answer

Warm the tube to restore vacuum

Question 4

Which tube should be drawn immediately after the blood culture bottles in the standard order of draw?

Accepted Answer

Light blue-topped tube

Answer

Gray-topped tube

Answer

Green-topped tube

Answer

Lavender-topped tube

Question 5

Which of the following is the correct angle for inserting a needle during routine venipuncture?

Accepted Answer

15 to 30 degrees

Answer

5 to 10 degrees

Answer

45 to 60 degrees

Answer

70 to 90 degrees

Question 6

What type of specimen container is required for collecting a 24-hour urine specimen?

Accepted Answer

Large opaque or amber collection jug

Answer

Sterile urine cup

Answer

Evacuated blood tube

Answer

Standard clear plastic container