Practice
Rational Testing
Investigating asthma symptoms in primary care
Cite this as:
BMJ
2012;344:e2734
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19 June 2012
Dear Editor
I really enjoyed the Asthma article.
But I wonder can you clarify for me
Fig 2 Implies that if FEV1 improves by >=200mls & >=12% from baseline this is consistent with asthma--modified with permission from Burton, an Australian
My understanding is in the UK we used to use the 1997 BTS guidance of >200mls & 15% in FEV1, but we now use the NICE guidance of >400mls increase in FEV1 to determine reversibility.
It's a small point, but as GPs we seem to be bombarded by conflicting guidance.
Competing interests: None declared
Dunville Medical Centre, 309 Grosvenor Rd, Belfast BT12 4LP
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