Heaf test

Heaf test
a skin test to determine whether or not an individual is immune to tuberculosis, carried out prior to vaccination. A spring-loaded gun mounted with very short needles produces a circle of six punctures in the forearm through which tuberculin is introduced. If the test is positive a reaction causes the skin to become red and raised, indicating that the individual is immune. If the test is negative a vaccine (BCG) should be given.
F. R. G. Heaf (20th century), British physician

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a type of intracutaneous tuberculin test; needle points of a multiple-puncture apparatus are dipped into 1 to 2 drops of tuberculin PPD, then placed on the forearm and made to penetrate the skin to a depth of 1 mm, depositing tuberculin in the outer layer of the skin. In three to seven days, a positive reaction is palpable, coalescing induration (edema) extending more than 5 mm around the puncture wounds.

Medical dictionary. 2011.

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  • Heaf test — a skin test to determine whether or not an individual is immune to tuberculosis, carried out prior to vaccination. A spring loaded gun mounted with very short needles produces a circle of six punctures in the forearm through which tuberculin is… …   The new mediacal dictionary

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  • Mantoux test — The Mantoux skin test consists of an intradermal injection of exactly one tenth of a milliliter (mL) of PPD tuberculin …   Wikipedia

  • tuberculin skin test — See Mantoux test, Heaf test …   Dictionary of molecular biology

  • F. R. G. Heaf — Professor Frederick Roland George Heaf (1894 1973) was a British physician.He was born in Desborough, Northamptonshire, England. He attended the University of Cambridge and St Thomas Hospital as a medical student. He followed a career in Public… …   Wikipedia

  • tuberculin test — n a test (as the Mantoux test or tine test) for hypersensitivity to tuberculin in which tuberculin is introduced (as by injection or puncture) usu. into the skin of the individual tested and the appearance of inflammation or induration at the… …   Medical dictionary

  • intradermal tuberculin test — a tuberculin test in which tuberculin is injected below the skin; see specific tests, including Heaf t., Mantoux t., and tine t …   Medical dictionary

  • multiple-puncture test — a skin test in which the material used (e.g., tuberculin) is introduced into the skin by pressure of several needles or pointed tines or prongs. See also tine t. and Heaf t …   Medical dictionary

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