The patient’s pulmonary function test results

Predicted normal valueLower limit of normalOur patient’s values
Before bronchodilator% of predicted normal valueAfter bronchodilatora% of predicted normal valueChange
FVC3.17 L2.44 L2.66 L84%2.73 L86%3%
FEV12.61 L/sec1.96 L/sec1.98 L/sec75%2.25 L/sec86%15%b
  • a Bronchodilator = 4 puffs of albuterol (360 μg).

  • b Clinically significant based on reversibility guidelines of ≥ 12% of baseline.1,2

  • FEV1 = forced expiratory volume in 1 second; FVC = forced vital capacity