Protamine Sulfate in Heparin Therapy

Hello! Let's solve this pharmacology question together. We are asked why protamine sulfate is kept readily available for patients receiving heparin therapy.

To answer this, we need to understand the relationship between Heparin and Protamine Sulfate.

Heparin is used to prevent blood clots, but its major adverse effect is excessive bleeding. Since heparin is an acid, we need a base to neutralize it. That is where protamine sulfate comes in. It is the specific antidote for heparin.

Let's look at the options provided. The first option suggests counteracting antiplatelet antibodies. While heparin-induced antibodies are a clinical concern, protamine does not treat that immune response.

The second option mentions preventing heparin induced thrombocytopenia, or H-I-T. However, protamine does not prevent H-I-T. Treatment for H-I-T usually involves stopping heparin and starting a different class of anticoagulant.