Partial thromboplastin time test with kaolin: Normal range and modifications for the diagnosis of haemophilia and Christmas disease

AUTOR(ES)
RESUMO

The partial thromboplastin time test provides a convenient and sensitive screening procedure for deficiencies of thromboplastic factors, especially factors VIII and IX. The test is carried out after preincubating the plasma for 10 minutes with kaolin, and Inosithin is used as a platelet substitute.

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