1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.



Updated February 08, 2008

Definition: The RAST, or radioallergosorbent, test is a blood test that tests for IgE antibodies to potential allergens.
Also Known As: allergy blood test

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.