rolling vein
Medical term Routine Blood Collections
A vein that slides away from the needle; anchoring the skin taut below the site holds it in place.
Related terms
- anchoringHolding the skin taut with the thumb below the site, pulling toward the hand, so the vein stays still as the…
- veinA vessel that carries blood back toward the heart under low pressure. Superficial arm veins are the usual…
- pulmonary circulationBlood flow from the right ventricle through the lungs, where it picks up oxygen, and back to the left atrium.
- pulseThe throb of an artery with each heartbeat. A pulse under the fingertip means an artery is there; do not…
- refluxBackflow of tube contents into the vein; keeping the arm angled downward while tubes fill prevents it.
- Rh factorRed-cell antigen tested with the ABO type: people who have it are Rh-positive; those who lack it are…
- sclerosed veinA hardened, cordlike vein, often from damage or clotting; it does not spring back when pressed and is not…
- serumThe liquid left after blood clots and is centrifuged; it lacks the clotting factors used up in the clot…
- serum separator tubeGold or red-gray (tiger) top. Its clot activator speeds clotting; when the tube is spun, its gel moves to…
- small-volume tubeStandard-size tube with a weaker vacuum that draws less blood; used for children and fragile veins to reduce…
Study Routine Blood Collections