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Pulmonary function tests Spirometry & Diffusion - Dr. Sheetu Singh

Pulmonary Function Tests Spirometry & Diffusion Know more details about lungs disease visit our website - www.drsheetusingh.com

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Pulmonary function tests Spirometry & Diffusion - Dr. Sheetu Singh

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  1. 2. Spirometry ←Step 2 Step 1→

  2. SpirometryInterpretation FEV1/FVC Step 1 <70% >70% Step 2 FVC% FVC% >80% Obstruction <80% Obstruction+ Restrictive <80% Restrictive >80% Normal

  3. 2. Spirometry What type of defect is seen on spirometry for ILD? • Restrictive • Obstructive • Normal

  4. Spirometry • Restrictive 731 (79%) • Obstructive 92 (10%) • Normal 106 (11%) Total 929 **Myth: All ILD have restrictive defects 1 in 5 do not have restrictive spirometry

  5. Pulmonary function tests Spirometry & Diffusion study • Most of the ILD have a restrictive defect. • Smoking history should be considered • Mixed pattern: • - Sarcoidosis • - Hypersensitivity Pneumonitis (HP) • - Smokers

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