Questions tagged [hematology]

Questions about the study, treatment, prevention, and diagnosis of blood-related diseases. See also [blood]

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How reliable is the determination method of reference ranges for blood tests?

A reference range is usually defined as the set of values 95 percent of the normal population falls within (that is, 95% prediction interval). It is determined by collecting data from vast numbers ...
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Why is prothrombin time not used to monitor the effects of heparin?

Unfractionated heparin (UFH) is an anticoagulant that main works "by inactivating thrombin and activated factor X (factor Xa) through an antithrombin (AT)-dependent mechanism". Prothrombin time (PT) ...