There is a condition called hereditary angioedema.
Doctors don't screen for it typically. The tests involve measuring 2 or more immune proteins in the blood.
I am going to give you a website, that is pretty detailed.
It explains the blood testing for each subtype of HAE.
http://www.haea.org/professionals/diagnosing-hae/
This is the most complete site I've found on the net.
Angioedema is difficult to diagnose and many doctors miss it.
This link shows a swollen hand....in the patient in the photo only one hand is swollen.
http://www.cinryze.com/hcp/hae-symptoms-triggers.aspx
The swelling from this condition is typically not red, or discolored. It comes from fluids leaking out of the blood system into the tissues.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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