====== Invasive Procedure ====== [[Minimally invasive neurosurgery]] [[Minimally invasive spine surgery]] ---- Before performing any [[invasive]] procedure, know the patient’s [[coagulation]] status (history of [[anticoagulant]] and/or [[antiplatelet]] function medications, and if indicated: [[PT]], [[PTT]], [[INR]], [[platelet count]] and [[platelet function assay]], [[Fibrin degradation product]]...).