title: Audit of community-based anticoagulant monitoring in patients with thromboembolic disease: is frequent testing necessary?
abstract: Oral anticoagulant monitoring is managed by general practitioners in Auckland. An audit of this service in 452 patients demonstrated that anticoagulant control was in line with recommended international guidelines, with 58.3% of international normalized ratio (INR) measurements in the therapeutic range. However, the frequency of testing was high, with the majority of patients (68%), including those on long-term treatment, having INR measurements at weekly intervals. We question the need for such frequent INR testing.
authors.affiliation: Department of Haematology, Auckland Hospital, Auckland, New Zealand.
authors.forename: L
authors.initials: L
authors.lastname: Young
authors.forename: P
authors.initials: P
authors.lastname: Ockelford
authors.forename: P
authors.initials: P
authors.lastname: Harper
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000925:Anticoagulants / Q000627:therapeutic use*; D003153:Community Health Services / Q000379:methods; D016903:Drug Monitoring / Q000379:methods*; D005260:Female; D006801:Humans; D019934:International Normalized Ratio; D008297:Male; D008875:Middle Aged; D015397:Program Evaluation; D013923:Thromboembolism / Q000097:blood / Q000188:drug therapy*; D014859:Warfarin / Q000627:therapeutic use*
chemical_list: D000925:Anticoagulants; D014859:Warfarin