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A member asked:

Vein collapse during blood work? why does this happen?

5 doctors weighed in across 2 answers
Dr. Creighton Wright answered

Specializes in surgery

Spasm: Several reasons: adrenaline from anxiety spasm from contact with needle bad technique. Just missed!

Dr Maes agreed

Answered 12/31/2013

4.6k views

Thank

Stress: Anxiety, anticipation of pain with needle sticks will energize the sympathetic nervous system, causing vasospasm (shrinking) of veins. Try hydration prior blood work, placing warm heating pad on arm for better success.

Dr Wright and 2 doctors agreed

Answered 1/6/2014

4.6k views

Thank

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