Interpretation OF PFT

INTERPRETATION OF PULMONARY FUNCTION TESTS A.A. Eldawlatly [email_address]

INDICATIONS ,[object Object],[object Object],[object Object],[object Object],[object Object]

Requirement for Good PFTs ,[object Object],[object Object]

AMERICAN THORACIC SOCIETY (ATS) GUIDELINES FOR ACCEPTABILITY & REPRODUCIBILITY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Variable effort, cough, early glottic closure can be seen on the graph but not at the values of the FEV1 and FVC

INTERPRETING SPIROMETRY Normal flow/volume Normal volume/time Acceptability

OBSTRUCTIVE LUNG DISEASE ,[object Object],[object Object],[object Object],[object Object],[object Object]

Example of spirometry with mild obstruction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

RESTRICTIVE LUNG DISEASE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

UPPER AIRWAY OBSTRUCTION (UAO) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Lack artifacts, start without hesitation, exhalation for 6 s

Example 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Interpretation OF PFT

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