Objective : To investigate the reliability and utility of spirometry generated by community pharmacists participating in two large asthma intervention trials of 892 people.

Methods : The Pharmacy Asthma Care Program (PACP) and the Pharmacy Asthma Management Service (PAMS) involved up to 4 visits to the pharmacy over 6 months for counseling and goal setting. Pharmacists performed spirometry according to ATS/ERS guidelines to inform management. The proportion of A-E, F quality tests, as per EasyOne™ QC grades, were recorded. Lung function results between visits and for participants referred/not referred to their general practitioner on the basis of spirometry were compared.

Results : Complete data from 2593 spirometry sessions were recorded, 68.5% of spirometry sessions achieved 3 acceptable tests with between-test repeatability of 150 mL or less (A or B quality), 96% of spirometry sessions included at least one test that met ATS/ERS acceptability criteria. 39.1% of participants had FEV1/FVC values below the lower limit of normal (LNN), indicating a respiratory obstruction. As a result of the service, there was a significant increase in FEV1 and FEV1/FVC and asthma control. Lung function values were significantly poorer for participants referred to their general practitioner, compared to those not referred, on the basis of spirometry.

Conclusions : Community pharmacists are able to reliably achieve spirometry results meeting ATS/ERS guidelines in people with asthma. Significant improvements in airway obstruction were demonstrated with the pharmacy services. Pharmacists interpreted lung function results to identify airway obstruction for referral, making this a useful technique for review of people with asthma in the community.