11 Foods That Soothe a Sore Throat Many fruits, vegetables, and herbs are capable of saving the day with their antioxidant-rich powers and can sometimes help you avoid that trip to the doctor. iStock/Thinkstock
RAST stands for radioallergosorbent test. This is a blood test used to diagnose allergies. Your blood is drawn and a lab will analyze your blood sample for the level of antibodies that cause allergies.
Typical costs: 1  For a patient not covered by health insurance an allergy test typically costs $150 to $300 for a consultation with an allergist, plus $60 to $300 total ($3 to $5 per allergen) for the much more commonly used skin prick test, or $200 to $1,000 total ($10 to $20 per allergen) for a blood test known as a RAST test.