Skin Test For Antibiotic Allergic Reaction

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Definition

The indirect Coombs' test measures the presence of antibodies to red blood cells in the blood (see also Coombs' test - direct).


Alternative Names

Indirect antiglobulin test


How the test is performed

Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The puncture site is cleaned with antiseptic. An elastic band is placed around the upper arm to apply pressure and cause the vein to swell with blood.

A needle is inserted into...

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Positive reaction to allergen

Image of a skin rash caused by an allergic reaction... Read more »