Interpretation of pulmonary function tests

Identify restrictive and obstructive pulmonary pathophysiology patterns and the appropriate therapies. Identify specific pulmonary disease abnormalities based on pulmonary function test results Media Background Interpreting pulmonary function tests can pose a significant challenge because the quality of the results is largely dependent on patient effort and cooperation. When interpreting pulmonary function tests we must not rely on the results alone. We must consider the patient’s history, physical examination and other studies. Recognizing a pattern first will usually make it easier to determine a normal study from an obstructive or restrictive result. Prompt Basic Spirometry Interpretation Interpret the following spirometry results: Problem 1 Measured Predicted % predicted FVC (L) 3.95 4.05 98 FEV1 (L) 3.16 3.24 98 FEV1/FVC % 80 Overall Interpretation: Problem 2 Measured Predicted % predicted FVC (L) 2.80 4.05 69 FEV1 (L) 2.23 3.24 69 FEV1/FVC % 80 Overall Interpretation: Problem 3 Measured Predicted % predicted FVC (L) 3.28 4.05 81 FEV1 (L) 1.94 3.24 60 FEV1/FVC % 59 Overall Interpretation: Problem 4 Measured Predicted % predicted FVC (L) 3.04 4.05 75 FEV1 (L) 2.11 3.24 65 FEV1/FVC % 69 Overall Interpretation: Problem 5 Measured Predicted % predicted FVC (L) 4.19 4.65 90 FEV1 (L) 2.93 3.85 76 FEV1/FVC % 66 Overall Interpretation: Problem 6 Measured Predicted % predicted FVC (L) 2.79 4.65 60 FEV1 (L) 1.54 3.85 40 FEV1/FVC % 55 Overall Interpretation: Problem 7 Measured Predicted % predicted FVC (L) 2.79 4.65 60 FEV1 (L) 2.31 3.85 60 FEV1/FVC % 83 Overall Interpretation: Problem 8 Measured Predicted % predicted FVC (L) 3.86 4.65 83 FEV1 (L) 3.20 3.85 83 FEV1/FVC % 83 Overall Interpretation: Problem 9 Measured Predicted % predicted FVC (L) 2.44 3.75 65 FEV1 (L) 2.07 3.19 65 FEV1/FVC % 85 Overall Interpretation: Problem 10 Measured Predicted % predicted FVC (L) 2.63 3.75 70 FEV1 (L) 1.34 3.19 42 FEV1/FVC % 51