Barriers to a full scope of pharmacy practice in primary care: A systematic review of pharmacists' access to laboratory testing.

Objectives: To describe primary care pharmacists' current scope of practice in relation to laboratory testing.

Method: A 2-tiered search of key databases (PubMed, EMBASE, MEDLINE) and grey literature with the following MeSH headings: . We focused on Canada, the United States, the United Kingdom, New Zealand and Australia for this review.

Results: There is limited literature exploring primary care pharmacists' scope of practice in relation to laboratory testing. The majority of literature is from the United States and Canada, with some from the United Kingdom and New Zealand and none from Australia. Overall, there is a difference in regulations between and within these countries, with the key difference being whether pharmacists access and/or order laboratory testing dependently or independently. Canadian pharmacists can access and/or order laboratory tests independently or dependently, depending on the province they practise in. US pharmacists can access and/or order laboratory tests dependently within collaborative practice agreements. In the United Kingdom, laboratory testing can be performed by independent prescribing pharmacists or dependently by supplementary prescribing pharmacists. New Zealand prescribing pharmacists can order laboratory testing independently. Most publications do not report on the types of laboratory tests used by pharmacists, but those that do predominantly resulted in positive patient outcomes.

Discussion/conclusion: Primary care pharmacists' scope of practice in laboratory testing is presently limited to certain jurisdictions and is often performed in a dependent fashion. As such, a full scope of pharmacy services is almost entirely unavailable to patients in the United States, the United Kingdom, New Zealand and Australia. Just as in the case for pharmacists prescribing, evidence indicates better patient outcomes when pharmacists can access/order laboratory tests, but more research needs to be done alongside the implementation of local guidelines and practice standards for pharmacists who practise in that realm. Patients around the world deserve to receive a full scope of pharmacists' practice, and lack of access to laboratory testing is one of the major obstacles to this. 2019;152:xx-xx.