Comparison of diagnostic tests for hymenoptera sting allergy.

The authors examined correlations among individual Hymenoptera venom skin tests, venom radioallergosorbent tests (RAST), venom-induced leukocyte histamine release (LHR) assays and individual Hymenoptera whole body extract (WBE) skin tests in 37 patients with histories of systemic reactions to Hymenoptera stings. Significant positive correlations were seen between the venom skin test results and results from either the venom RAST or the LHR assay for most venoms. There was a relatively high frequency of positive WBE skin tests in association with other negative tests. The ultimate diagnostic test for stinging insect sensitivity is a deliberate sting challenge; in lieu of such a sting the clinical history and the venom skin test appear to provide the best estimate of clinical Hymenoptera sting sensitivity.