#heaf_test
Heaf test
Skin test for tuberculosis in children
The Heaf test, a diagnostic skin test, was long performed to determine whether or not children had been exposed to tuberculosis infection. The test was named after F. R. G. Heaf. Also known as the Sterneedle test, it was administered by a Heaf gun, a spring-loaded instrument with six needles arranged in a circular formation which was inserted in the wrist or shoulder.
Tue 13th
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