A nurse is caring for a client who is prescribed heparin via intravenous (IV). 40 minutes after the administration of heparin, the client reports "coughing up blood" and notes there is blood in his stool.
Based on the client's presenting symptoms, which of the following options is an antidote for this client?

Choice A rationale

Stopping the infusion immediately is crucial to prevent further exposure to the allergen causing the adverse reaction. This intervention halts the administration of gentamicin, which is likely causing the dyspnea, rash, and itchiness. Prompt discontinuation of the medication minimizes the severity of the allergic reaction and allows for further medical management.

Choice B rationale

Administering an IV fluid bolus to flush the medication is not the priority intervention in this case. While it might help to clear the medication from the bloodstream, it does not address the immediate need to stop the allergen exposure and manage the allergic reaction.

Choice C rationale

Encouraging the client to take deep breaths and remain calm is supportive, but it does not address the root cause of the allergic reaction, which is the administration of gentamicin. The immediate priority is to stop the infusion and then manage the symptoms.

Choice D rationale

Administering oxygen via nasal cannula may help alleviate respiratory distress, but it is not the priority intervention. The primary step is to stop the infusion to prevent further exposure to the allergen.

Choice A rationale

Simvastatin is used to lower cholesterol levels and is not indicated for the management of DVT.

Choice B rationale

Furosemide is a diuretic used to treat fluid retention and high blood pressure, not DVT.

Choice C rationale

Enoxaparin is an anticoagulant that helps to prevent and treat deep vein thrombosis by inhibiting clot formation.

Choice D rationale

Gemfibrozil is used to reduce triglyceride levels and is not indicated for DVT management.