Ivy method [Robert H. Ivy, American surgeon, 1881–1947] , a test of bleeding time in which a blood pressure cuff on the upper arm is inflated to 40 mm of mercury and a small wound is made with a scalpel and a template on the volar surface of the arm. Prolonged bleeding times are most often the result of a disorder of platelet production or the ingestion of aspirin or other antiinflammatory medications. Normal adult Ivy bleeding time is 1 to 9 minutes. See also hemostasis.
