In the acute phase after ST segment elevation myocardial infarction (STEMI),fibrinolytic therapy is used in combination with heparin to recanalize the coronary artery.What dosage is the initial heparin bolus?
A) 60 units/kg maximum 5000 units
B) 30 units/kg maximum 3000 units
C) 25 units/kg maximum of 2500 units
D) 12 units/kg maximum of 1000 units

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In the acute phase after ST segment elevation myocardial infarction,heparin is administered in combination with fibrinolytic therapy to recanalize (open)the coronary artery.For patients who will receive fibrinolytic therapy,an initial heparin bolus of 60 units/kg (maximum,5000 units)is given intravenously followed by a continuous heparin drip at 12 units/kg/hr (maximum 1000 units/hr)to maintain an activated partial thromboplastin time between 50 and 70 seconds (1.5 to 2.0 times control).

In the Acute Phase After ST Segment Elevation Myocardial Infarction