In a patient treated for 2 days for a proximal pulmonary embolism with unfractionated heparin, the tca ratio is 6 and the anti-xa activity is measured at peak activity at 1.2 iu/ml, in the absence of bleeding, whatever (s) measure(s) do you adopt immediately? (one or more possible answers)
Vitamin K intake
Infusion of concentrated platelet pellet
Perfusion de protamine
Discontinuation then dose adjustment
Introduction of avk