C-reactive protein testing reduces antibiotics prescription in a community setting

Abdus Burahee; Owen Hibberd; Aneja Malladi

doi:10.3399/bjgp19X703313

Abstract

Background Overuse of antimicrobials and the threats posed by resistance are concerning. Most patients in primary care with respiratory tract symptoms are prescribed antibiotics, amounting between 80–90% of all prescriptions. The National Institute for Health and Care Excellence (NICE) recommends point-of-care (POC) testing of C-reactive protein (CRP) where there is uncertainty about prescribing antibiotics. Studies evaluating the use of POC CRP to reduce antibiotic prescribing for self-limiting respiratory illness in primary care have demonstrated heterogeneity in their results.

Aim To evaluate the impact of POC CRP testing on antibiotic prescribing.

Method A retrospective case analysis was undertaken at a GP practice. Alere Afinion AS100 was used for POC CRP testing. Data were collected on patients presenting with cough or sore throat who had POC CRP testing used in their clinical decision making. Eighty-four cases were selected for inclusion. NICE clinical guideline CG191 was used as a standard comparator for antibiotic prescribing and patients were followed up over a 2-month period.

Results Patients presented with cough (n = 56) and sore throat (n = 28). At initial presentation 23/84 (27.4%) of patients were prescribed antibiotics. Over the 2-month follow-up period 15/84 (17.8%) of patients had at least one further consultation related to their initial respiratory complaint with 6/84 (7.1%) being prescribed antibiotics. The overall effect was a reduction of antibiotic prescriptions by 65.5%.

Conclusion The use of POC CRP testing helped GPs reduce the rate of antibiotic prescription and improve antimicrobial stewardship by being an addition to their diagnostic armoury. It has also shown potential role in patient reassurance and modifying health seeking behaviour.

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C-reactive protein testing reduces antibiotics prescription in a community setting

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