ATI LPN
Fundamentals of Nursing Care: Concepts, Connections & Skills
Chapter 34 : Phlebotomy and Blood Specimens Questions
Question 1 of 5
A patient has several blood tests ordered. You have gathered the correct tubes, which include a red top, green top, and light blue top. In which order will you draw them?
Correct Answer: D
Rationale: The order of draw is light blue (citrate), red (serum), green (heparin) to prevent cross-contamination.
Question 2 of 5
Which of these will always be drawn first if multiple tests are ordered?
Correct Answer: A
Rationale: Blood cultures are drawn first to minimize contamination risk, as they require sterile technique.
Question 3 of 5
When performing a dermal puncture for blood sugar on an adult patient, where should the puncture be made?
Correct Answer: B
Rationale: The lateral aspect of the fingertip is the preferred site for dermal puncture in adults to minimize pain and ensure adequate blood flow.
Question 4 of 5
When selecting a vein for phlebotomy, which of the following are true?
Correct Answer: B,D
Rationale: Avoiding hard, crooked veins and using the non-mastectomy arm ensures safe and effective venipuncture.
Question 5 of 5
Which of the following needle sizes would be an appropriate choice to use for phlebotomy in a 45-year-old patient?
Correct Answer: C,D
Rationale: 21- and 23-gauge needles are suitable for phlebotomy in adults, balancing blood flow and patient comfort.