Nokea
When selecting a vein for phlebotomy, which of the following are true?
- A. Use the vein that looks the largest, no matter what its condition
- B. Avoid areas where the vein is crooked or feels hard and ropelike
- C. The site of choice is the dorsal side of the hand
- D. Use the right arm of a patient who has had a left mastectomy
- E. Use the right arm of a patient who has an IV in the right arm
Correct Answer: B,D
Rationale: Avoiding hard, crooked veins and using the non-mastectomy arm ensures safe and effective venipuncture.
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When performing a dermal puncture for blood sugar on an adult patient, where should the puncture be made?
- A. On the lateral aspect of the heel
- B. On the lateral aspect of the finger tip
- C. On the end of the fingertip
- D. On the left earlobe
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.
A patient who has had venipuncture performed will need more teaching if she says:
- A. I shouldn't lift anything heavy with this arm for an hour
- B. I will take the wrap off of my arm tomorrow morning
- C. I will hear from my doctor about my test results
- D. Yes, the name on the label is my name correctly spelled
Correct Answer: B
Rationale: The wrap should be removed after 10-15 minutes, not the next day, to avoid complications like bruising.
Which of the following needle sizes would be an appropriate choice to use for phlebotomy in a 45-year-old patient?
- A. 16 gauge
- B. 19 gauge
- C. 21 gauge
- D. 23 gauge
- E. 30 gauge
Correct Answer: C,D
Rationale: 21- and 23-gauge needles are suitable for phlebotomy in adults, balancing blood flow and patient comfort.
Activation of the needle safety device should occur when?
- A. Before the initial stick
- B. During the draw of blood
- C. Immediately after the tourniquet is released
- D. As soon as the needle is withdrawn
- E. After placing tape over the puncture site
Correct Answer: D
Rationale: Activating the safety device immediately after needle withdrawal prevents needlestick injuries.
The tourniquet should be applied where in relation to the intended puncture site?
- A. 6 inches distal to the site
- B. 3 inches distal to the site
- C. 6 inches proximal to the site
- D. 3 inches proximal to the site
Correct Answer: D
Rationale: The tourniquet is applied 3 inches proximal to the puncture site to engorge the vein for easier access.