Alternative Names: Immediate Aspergillus skin test

How the test is performed:

The test site (an area with hair, usually the forearm) is cleansed. The antigen is then injected into the area. If there is a positive reaction, the area should turn red and develop a lump (similar to a mosquito bite) within ten minutes of injection. The lump should be at least 3 millimeters in diameter to be considered positive.

How to prepare for the test:

There is no special preparation necessary.

How the test will feel:

There will be a brief sting as a needle is inserted just below the skin surface.

Why the test is performed:

The test is to detect hypersensitivity to the mold aspergillus.

Normal Values:

A negative reaction or no inflammation at the test site is normal.

What abnormal results mean:

If a positive reaction occurs (the test site is inflamed), you are hypersensitive to the aspergillus mold. You may have the disease known as pulmonary aspergillosis.

What the risks are:

There is a slight risk of anaphylactic shock (a severe reaction).

Special considerations:

Not applicable.