Medicine In a Patient with clinical signs of Asthma which of the following tests will confirm the diagnosis A Increase in FEVUFVC B > 200 ml increase in FEV I after Methacholine C Diurnal variation in PEF > 20 Percent D Reduction of FEV 1 > 20% after bronchodilatces 💡 Explanation In a Patient with clinical signs of Asthma which of the following tests will confirm the diagnosis ✓ Correct Answer: C. Diurnal variation in PEF > 20 Percent