94578-2

LOINC code 94578-2 identifies "Clot strength [Length fraction] in Blood by Thromboelastography.platelet thromboxane A2 receptor inhibited". A calculated value representing the relative amount of clotting strength (i.e., platelet activity) that would remain in the presence of anti-platelet thromboxane A2 (TXA2)-receptor inhibiting drugs. It is the portion of clotting strength due to factors other than arachidonic acid, which activates platelets by a pathway that includes metabolism to thromboxane A2 (TXA2), which binds to the TXA2 receptor. This result is used to guide anti-platelet therapy decisions. For example, if a patient's baseline relative clotting strength due to AA activation is 25% [LOINC: 94579-0], then treating that patient with an anti-platelet TXA2 receptor inhibitor would only reduce clotting strength by 25%, leaving a predicted 75% intact.

This code measures Clot strength in Bld. It belongs to the COAG class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.