biological false positive

A lab result that is positive in a person who is known to be a true negative for the substance being measured

biological false positive

A lab result that is positive in a subject who is known to be a true negative for the substance being measured. See Ulysses syndrome.
References in periodicals archive ?
Biological false positive serological tests for syphilis in the Jamaican population.
The Treponema pallidum Haemagglutination (TPHA) test in biological false positive and leprosy sera.