Heaf Test
The Heaf tuberculin skin test was used in the United Kingdom, but discontinued in 2005.
The equivalent Mantoux test positive levels done with 10 TU (0.1 ml at 100 TU/ml, 1:1000) are
- <5 mm induration (Heaf 0-1)
- 5–15 mm induration (Heaf 2)
- >15 mm induration (Heaf 3-4)
Read more about this topic: Mantoux Test
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