RAST
Medical term · R
Abbreviation for radioallergosorbent test, a blood test used for identifying allergens.
Related terms
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Radioallergosorbent testA blood test used for identifying allergens.
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Rapid eye movement sleepA period of intense brain activity during sleep, often associated with dreams; named for the rapid eye movements that occur during this time. Also called dreaming sleep.
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Raynaud’s syndromeA condition in which the blood vessels in the fingers and other extremities narrow in response to cold or stress, causing them to turn white or blue.