khazi abdul jabbar

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Gallstones

PULMONARY FUNCTION TESTSKHAZI ABDUL JABBARDEPT. OF OCCUPATIONAL DISEASES,MEDICAL ACADEMY named after S. I. GEORGIEVSKY,CRIMEAN FEDERAL UNIVERSITY.

LEARNING OBJECTIVES:General purpose for PFTsTypes of PFTsInterpretation of different PFTsKnowing normal PFTs

PURPOSE OF PFTs:Dx of symptomatic disease.Early screening for asymptomatic diseases.Prediction of prognosis.Monitoring of treatment.

PFTs helps us to classify diseases into 3 major subdivisions:Obstructive lung disease: COPD, BA, CF & bronchiectasis.Restrictive lung disease: interstitial lung diseases (pulmonary fibrosis, sarcoidosis), chest wall pathologies, neuromuscular pathologies (ALS).Pulmonary vascular disease: primary pulmonary hypertension, ch. TED.

TYPES OF PFTs:Routine: spirometry, lungs volume, diffusing capacity of CO-(abb:Dlco)Specialized: arterial blood gas, oximetry, peak flow, exercise tests.

General understanding of lungs volumes:

SPIROMETRY:How it is done?

Values that we will be calculating:

Flow volume loop:

Summary of values:FEV1:>3 LFVC:>4 LFEV1/FVC ratio: 60%Flow volume loopPERF: male(((ht*5.48)+1.58)-(age*0.041))*60 female(((ht*3.72)+2.24)-(age*0.03))*60FEF25-75%With bronchodilator:

Interpretation of spirometry:FEV1FVCFEV1/FVCRATIOTiffeneau Index.OLDNORM/DECREASEDNORM/DECREASEDDECREASED(70%)

Flow volume loop:

Location of obstruction:

Stagine of COPD based on FEV1:GOLD classification based on FEV1 post bronchodilation.GOLD STAGESFEV1 as per age/sex/height1ST STAGE FEV170%2ND STAGE FEV1 50 TO

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