Capillary enzyme immunoassay field kits for the detection of snake venom in clinical specimens: a review of two years' use.

A capillary enzyme immunoassay kit for the detection of snake venom in specimens from envenomed patients has now been in use for two summer periods. Results from 130 questionnaires completed after the use of a kit are tabulated. Positive detection and identification of the snake involved was reported in 37 cases of patients in whom some clinical signs of envenoming were apparent. In 58 patients in whom no clinical signs of envenoming were observed, no venom was detected. Performance characteristics of the test were very good and could be improved if bite site swabbings or urine samples were used as the specimen for test in preference to serum or blood.