radioimmunoassay test

The RAST test is a radioimmunoassay test to detect specific IgE antibodies to suspected or known allergens for the purpose of guiding a diagnosis about allergy.

Mr. Bronstein, who is with the Manhattan firm of Bronstein, Van Veen & Bronstein, said that Mr. Burgel had voluntarily submitted to radioimmunoassay tests of his own hair and that the results had shown no trace of cocaine.

But Dr. Frederick Paul Smith, an associate professor of forensic science at the University of Alabama in Birmingham, said yesterday that radioimmunoassay test findings involving hair and drugs had figured in some criminal cases, including a sexual-assault prosecution in which he had testified in Alaska in 1982.