Application of the theory of planned behavior to oral anticoagulant therapy.

Anticoagulation control is imperative for individuals who are prescribed long-term oral anticoagulation therapy. Therapeutic international normalized ratios decrease the risk of the thromboembolic complications that are associated with oral anticoagulation therapy. Individuals on oral anticoagulation therapy are often asked to make lifestyle modifications that can become barriers to medication adherence. The application of the theory of planned behavior to oral anticoagulation therapy can be used to assist advanced practice nurses in assessing individuals for the perceived barriers or obstacles that might interfere with the behavioral changes necessary to successfully comply with the recommended treatment plan.