Clinical ProceduresQuestion 41 of 100
Which vein is generally the first choice for routine venipuncture in an adult, and why?
a.The median cubital vein, because it is large, well anchored, and lies away from major nerves and the brachial artery
b.The basilic vein, because it is closest to the brachial artery and nerves
c.A vein on the underside of the wrist, because it is most visible
d.A vein in the foot, because it avoids arm bruising
Explanation
The median cubital vein in the antecubital fossa is preferred because it is usually large, stable, and located away from the brachial artery and median nerve. The basilic vein is chosen last precisely because of its proximity to the artery and nerve. The underside of the wrist carries a high nerve injury risk, and foot veins require a provider's order due to clotting and infection risk.
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