Argatroban dosing for HIT is best described by which statement?

Argatroban dosing for HIT is best described by which statement?

• A. 2 mcg/kg/min for HIT
• B. 10 mcg/kg/min for HIT
• C. 0.2 mg/kg/min for HIT
• D. 350 mcg/kg load followed by 25 mcg/kg/min for PCI

Answer: (A)

Argatroban is a direct thrombin inhibitor used in HIT, and the standard approach is to start a continuous IV infusion at 2 mcg/kg/min, then adjust based on the aPTT to reach about 1.5–3 times baseline. There is no loading dose for HIT, except in the PCI setting where rapid anticoagulation is needed, in which case a bolus is used (not part of HIT management outside PCI). The other options either propose a much higher infusion rate, use incorrect units, or describe the PCI loading/maintenance regimen rather than HIT dosing. So the statement that describes 2 mcg/kg/min for HIT best matches the typical HIT dosing regimen.

Argatroban is a direct thrombin inhibitor used in HIT, and the standard approach is to start a continuous IV infusion at 2 mcg/kg/min, then adjust based on the aPTT to reach about 1.5–3 times baseline. There is no loading dose for HIT, except in the PCI setting where rapid anticoagulation is needed, in which case a bolus is used (not part of HIT management outside PCI). The other options either propose a much higher infusion rate, use incorrect units, or describe the PCI loading/maintenance regimen rather than HIT dosing. So the statement that describes 2 mcg/kg/min for HIT best matches the typical HIT dosing regimen.