Which parameter is NOT typically included in a routine coagulation test?

In routine coagulation testing, parameters are specifically chosen to evaluate different aspects of the coagulation pathway. Prothrombin time assesses the extrinsic and common pathways of coagulation, primarily measuring factors such as II, V, VII, and X. Activated partial thromboplastin time (aPTT) evaluates the intrinsic and common pathways, focusing on factors such as I, II, V, VIII, IX, X, XI, and XII. Thrombin time measures the conversion of fibrinogen to fibrin, providing insight into the final steps of the coagulation cascade.

The serum glucose level, on the other hand, is not related to coagulation and serves a completely different purpose in clinical testing. It is used to assess metabolic conditions, particularly diabetes, rather than evaluations of the hemostatic function of the blood. Thus, it is not included in routine coagulation panels, making this the parameter that does not belong.