NHA Certified Phlebotomy Technician (CPT)Patient PreparationHard
A phlebotomy technician is preparing to draw blood from a patient's arm. The patient has visible edema in both antecubital fossae. Which of the following is the MOST appropriate action for the technician to take?
- ANotify the nurse and request an alternative method for blood collection.
- BProceed with venipuncture in the least edematous area.
- CSelect an alternate site, such as the dorsal side of the hand or foot.
- DApply a warm compress to the edematous area to reduce swelling.
Show answer & explanationAnswer & explanation
Correct answer: A. Notify the nurse and request an alternative method for blood collection.
Edematous areas should be avoided for venipuncture due to altered test results, difficulty in locating veins, and increased risk of infection. Notifying the nurse for an alternative collection method or further assessment is the safest and most appropriate action.
Why the other options are wrong
- B. Venipuncture in an edematous area can dilute samples and alter test results, and it's difficult to palpate veins.
- C. While alternate sites can be used, significant edema in both common sites suggests a systemic issue, making it prudent to consult with nursing staff for an alternative collection method or patient assessment.
- D. Applying a warm compress is not a primary solution for significant edema before venipuncture and may not resolve the underlying issue.
Edema and Venipuncture
Edema is swelling caused by excess fluid accumulation in body tissues. Venipuncture should be avoided in edematous areas.
- Compromises sample integrity due to dilution.
- Increases risk of infection.
- Makes vein palpation difficult.
Memory trick: When the arm is a puff, don't draw, ask for help, that's enough!