Heart rate: Rapid heartbeat on standing can have many causes. Low blood volume, venous insufficiency and postural orthostatic tachycardia syndrome are three of them. There are a number of others. You need an evaluation by a doctor to try and explain your finding.
Answered 8/27/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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