NHA Certified Phlebotomy Technician (CPT)Safety and ComplianceHard
A phlebotomy technician is asked to draw blood from a patient who has an intravenous (IV) line in the antecubital fossa of their right arm. The left arm has significant scarring from previous surgeries. Which of the following is the most appropriate action?
- AAsk a nurse to temporarily stop the IV infusion and draw from the right arm.
- BDraw from the right arm, distal to the IV insertion site.
- CDraw from the left arm, avoiding the scarred areas as much as possible.
- DSeek an alternative site, such as the hand or foot, after consulting with a nurse.
Show answer & explanationAnswer & explanation
Correct answer: D. Seek an alternative site, such as the hand or foot, after consulting with a nurse.
Drawing from the same arm as an active IV can dilute the specimen. Scarred areas are difficult to palpate and can lead to inaccurate results or patient discomfort. In such cases, the best practice is to seek an alternative site like the hand or foot, but only after consulting with a nurse to ensure patient safety and appropriateness, as foot draws require specific orders.
Why the other options are wrong
- A. Stopping an IV infusion is outside the scope of practice for a phlebotomy technician and requires a nurse's order.
- B. Drawing distal to an IV can still result in fluid contamination and inaccurate results.
- C. Scarred areas are not ideal for venipuncture due to altered anatomy and potential for pain or insufficient blood flow.
Difficult Venipuncture Sites
Guidelines for selecting alternative venipuncture sites when primary sites (antecubital fossae) are unavailable or compromised.
- Avoid IV arms, shunts, fistulas, mastectomy side, edema, scars.
- Consult nurse for IV arm draws (distal, after turning off IV for 2-5 min).
- Hand veins are an option, but more fragile.
- Foot veins are typically a last resort and require physician's order.
Memory trick: PRIORITIZE: Primary, Remote, Informed, Omit, Rarely.