How is heparin reversal performed and why is protamine dosing important?

• A. Protamine reverses heparin; dosing must be titrated to ACT and patient response to minimize bleeding or reaction risk.
• B. Protamine accelerates heparin activity.
• C. Protamine is not used during CPB.
• D. Protamine dosing is fixed and does not depend on patient response.

Answer: (A)