Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of RAST
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
RAST: Radioallergosorbent test, an allergy test that is done on a sample of blood. RAST is used to check for allergic sensitivity to specific substances.
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