Researchers have tested a standard latex extract in clinical trials, and the data have been submitted to the FDA for approval. But it isn't as sensitive as a skin-prick test. Patch tests are used to diagnose allergic contact dermatitis from latex additives. In these tests, patches of gloves containing various allergenic rubber chemical additives are taped to the person's back and left in place for 48 to 96 hours. The skin reaction beneath each patch is checked at 48 hours and again at 96 hours to determine which additives cause sensitivity.
Patch tests are reliable for delayed hypersensitivity allergy.
Completely avoiding highly allergenic latex-containing items is important. It's important to note that most health care workers who are allergic to latex can continue to work in the health care setting when powdered latex gloves are eliminated from the environment. Investigate your facility's policies for latex-sensitive employees. Managing latex-sensitive employees is controversial, and experts offer a wide range of advice. Some suggest that if you have symptoms of allergy at work, everyone in the unit should switch to synthetic gloves.