PT - JOURNAL ARTICLE AU - D. T. Hunter AU - J. L. Allensworth TI - Improved coagulation screening by an activated recalcification test AID - 10.1136/jcp.20.3.244 DP - 1967 May 01 TA - Journal of Clinical Pathology PG - 244--248 VI - 20 IP - 3 4099 - http://jcp.bmj.com/content/20/3/244.short 4100 - http://jcp.bmj.com/content/20/3/244.full SO - J Clin Pathol1967 May 01; 20 AB - The conventional plasma recalcification test is improved by incubation of test plasma with Celite suspended in distilled water. This effectively activates factor XII and releases platelet factor 3, thereby markedly shortening the clotting time. The modified plasma recalcification test has several advantages that contribute to its usefulness as a general screening test for coagulation abnormalities. It is more precise and reproducible than any comparable test that assays a similar spectrum of coagulation factors.