A member asked:

I have 75% stenosis of left subclavian artery alternating with 100% with back spasms. arm drk purple, then normal. how long can this go on before seri?

A doctor has provided 1 answer

See vascular surgeon: If your arm is dark purple it is cyanotic. It is depleted of oxygen and should have a prompt evaluation. I would think it is already serious.

Answered 4/20/2016

1.4k views

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