NHA Certified Phlebotomy Technician (CPT)Collection RoutineHard
A phlebotomy technician is performing a venipuncture on an elderly patient with fragile, rolling veins. Which of the following techniques is most appropriate to prevent the vein from moving during needle insertion?
- AApply a tight tourniquet for an extended period.
- BAnchor the vein firmly with the thumb of the non-dominant hand below the puncture site.
- CUse a larger gauge needle to stabilize the vein.
- DInsert the needle with a rapid, jabbing motion.
Show answer & explanationAnswer & explanation
Correct answer: B. Anchor the vein firmly with the thumb of the non-dominant hand below the puncture site.
For fragile, rolling veins, proper anchoring is crucial. Firmly anchoring the vein with the thumb of the non-dominant hand, pulling the skin taut below the puncture site, prevents the vein from rolling and helps ensure a successful, less traumatic insertion.
Why the other options are wrong
- A. A tight, extended tourniquet can cause discomfort, hemoconcentration, and increase the risk of hematoma, especially with fragile veins.
- C. A larger gauge needle would cause more trauma to fragile veins, not stabilize them, and is not recommended.
- D. A rapid, jabbing motion increases the risk of going through the vein or missing it entirely, and is not a controlled technique for fragile veins.
Vein Stabilization
Techniques used to prevent a vein from moving or 'rolling' during needle insertion, ensuring a successful venipuncture.
- Anchor the vein firmly with the thumb.
- Pull the skin taut below the puncture site.
- Crucial for rolling, fragile, or small veins.
Memory trick: Anchor the Vein Tight, for a Successful Bite!