In a Patient with clinical signs of Asthma which of the following tests will confirm the diagnosis
Correct Answer: Diurnal variation in PEF > 20 Percent
Description: Ans. is 'c' i.e., Diurnal variation in PEF > 20 Percent Diagnosis of Asthma require Demonstration of Airways obstruction Decrease in the ratio of FEVI/FVc Demonstration of acute reversibility of airflow Administer 2-4 puffs of quick acting bronchodilator e.g., albuterol and repreat spirometry 10-15 min An increase in FEV , of 12% or more accompanied by an absolute increase in FEV,of at least 20 ml Demonstration of Airway hyperresponsiveness in response to methacholine challenge test A bronchoprovocator (Methacholine) is administered hyperresponsiveness of the airway is demonstrated by reduction of FEV1 to 20% Increased Peak expiratory flow rate variabilities Demonstration of diurnal variation in PEF of more than 20% strongly suggests diagnosis of Asthma
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now