Percent heparin inhibition [Ratio] in Serum

Prcnt hep inhibited Ser-Rto

Definition

The percent inhibition by heparin is determined by adding excess heparin (high-dose heparin) to the patient's serum. Testing is performed to increase the specificity of the assay and confirm a positive heparin induced antibody result. Inhibition of a positive result by 50% or more reduction in the optical density is considered confirmatory and characteristic of Type II heparin induced thrombocytopenia (HIT) antibodies.

Hep; Hepar; Heparn; Point in time; Prcnt hep inhibited; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; Serology; Serum; SR