ATI LPN
Study Guide for Fundamentals of Nursing Care: Concepts, Connections & Skills
Chapter 34 : Phlebotomy and Blood Specimens Questions
Question 1 of 5
You should avoid which of the following actions that can cause hemolysis?
Correct Answer: B,C
Rationale: Leaving the tourniquet on too long or using a small-gauge needle (e.g., 25-gauge) with an evacuated tube can cause hemolysis due to excessive pressure or shear stress on red blood cells.
Question 2 of 5
What action(s) will help to protect you from bloodborne pathogens during phlebotomy?
Correct Answer: A,B,C
Rationale: Hand washing before and after the procedure and wearing gloves during it are standard precautions to protect against bloodborne pathogens. The needle safety device should be activated immediately after use, not after removing gloves.
Question 3 of 5
You are preparing to draw the blood specimen and know that you must protect yourself against bloodborne pathogens. How will you accomplish this?
Correct Answer: C,D
Rationale: Washing hands and wearing gloves are key measures to protect against bloodborne pathogens, following standard precautions for phlebotomy.
Question 4 of 5
What color tubes will you need for these tests?
Correct Answer: D,E,F
Rationale: Blood cultures use yellow tubes, complete blood count uses lavender, electrolytes use green, and glucose uses gray (though red is sometimes used for chemistry tests, green is standard for electrolytes).
Question 5 of 5
In what sequence will you draw the colored tubes?
Correct Answer: A,B,C,D
Rationale: The order of draw is yellow (blood cultures) first to prevent contamination, followed by lavender (CB
C), green (electrolytes), and gray (glucose) to minimize additive carryover.