Impact of a Pharmacist-Provided Spirometry Service on Access to Results in a Primary Care Setting

Pharmacist Provided Spirometry Services: A Scoping Review

Purpose

Despite international guidelines' recommendations, spirometry is underutilized in the diagnosis and management of asthma and COPD. Spirometry may be an opportunity for trained pharmacists to meet the needs of patients with suspected or diagnosed lung conditions. The aim of this scoping review is to describe the literature including pharmacist provided spirometry services, specifically to identify: 1) the models of pharmacist provided spirometry services, and additional services commonly offered alongside spirometry, 2) pharmacist training and capability to obtain quality results, and (3) pharmacist, physician, and patient perspectives.

Methods

In September 2020, a comprehensive literature search in PubMed and EMBASE was conducted to identify all relevant literature on the topic of pharmacist provided spirometry services using the search term: "pharmacist or pharmacy" and "spirometry or pulmonary function test or lung function test." Literature was screened using inclusion/exclusion criteria and selected articles were charted and analyzed using the themes above.

Results

A total of 27 records were included. The scoping review found that pharmacist provided spirometry has been conducted around the world in community pharmacies and clinic settings. Community pharmacists may increase access to spirometry screening; the lack of communication with primary care providers and remuneration are barriers that need to be overcome to optimize the utility of the service. Clinic-based services are interprofessional and collaborative, allowing a patient to receive the test, results, diagnosis, and medication changes in one visit. Following comprehensive training, pharmacists felt confident in their ability to perform spirometry and met quality standards at acceptable rates.

Conclusion

Spirometry is an opportunity for pharmacists to improve evidence-based practice for screening and diagnosing lung conditions along with providing comprehensive services to complement testing. Data around provider and patient perspectives is limited and should be further investigated to determine if providers and patients would value and collaborate with pharmacists providing spirometry services.

Pharmacist-Driven Spirometry Screening to Target High-Risk Patients in a Primary Care Setting

Objectives: The primary objective of this study is to determine the effect of proactive pharmacist identification of high-risk patients eligible for diagnostic spirometry testing on the percentage of appropriate spirometry referrals ordered and the percentage of spirometry tests completed in those that qualify. Methods: This prospective study compares spirometry referrals ordered and tests completed between an intervention site and control site within a federally qualified health center (FQHC) where pharmacists provide spirometry services. At both sites, all patients who had a primary care provider (PCP) appointment and qualified for spirometry screening on the designated intervention dates during a 12-week period were included in this study. At the intervention site, the pharmacist recommended a spirometry screening to the PCP prior to identified high-risk patients' appointments. At both sites, a chart review was completed to determine if referrals were ordered and tests were completed for patients who qualified. Results: The number of patients eligible for diagnostic spirometry testing at the intervention and control sites was 190 (n = 125 vs n = 65, respectively). Among eligible patients, the percentage of referrals ordered was significantly higher at the intervention site (47.2% vs 7.7%, P < .001). Among patients who qualified, completion of spirometry testing was significantly higher in the intervention site (23.2% vs 3.1%, P < .001). Conclusion: Results of this study suggest that pharmacists proactively identifying high-risk patients for spirometry screenings within an FQHC increases appropriate referrals ordered by PCPs and tests completed by high-risk patients. Pharmacists in the primary care setting can aid the PCP in the management of chronic obstructive pulmonary disease through significantly increased spirometry referrals and therapeutic clinical assessments and recommendations. They also can provide face-to-face motivational counseling for smoking cessation, inhaler education, and vaccine recommendations. This population health approach to spirometry testing represents an emerging role for pharmacists and could be adopted in other primary care settings.