A patient is in cardiac arrest with ventricular fibrillation refractory to a second shock. Of the following, which drug and dose should be administered first by the IV/IO route?

1. Epinephrine 1 mg
2. Vasopressin 20 units
3. Sodium bicarbonate 50 mEq
4. Atropine 1 mg

In a situation of cardiac arrest and ventricular fibrillation refractory to shocks, the first drug choice is Epinephrine 1 mg, which boosts blood pressure, improves coronary perfusion and increases cardiac contractions. So the correct option is 1. Epinephrine 1 mg.

Explanation:

In the context of cardiac arrest and ventricular fibrillation that is refractory to shocks, the first-line drug of choice, according to Advanced Cardiovascular Life Support (ACLS) guidelines, is 1. Epinephrine 1 mg administered IV/IO.

Epinephrine acts to stimulate alpha-1 adrenergic receptors, causing increased peripheral vascular resistance and subsequently increased arterial blood pressure and coronary perfusion pressure. It also stimulates beta-1 adrenergic receptors, improving the force of cardiac contractions.

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A patient is in cardiac arrest with ventricular fibrillation refractory to a second shock. Of the following, which drug and dose should be administered first by the IV/IO route?1. Epinephrine 1 mg 2. Vasopressin 20 units 3. Sodium bicarbonate 50 mEq 4. Atropine 1 mg

Answer :

Final answer:

Explanation:

Other Questions

A patient is in cardiac arrest with ventricular fibrillation refractory to a second shock. Of the following, which drug and dose should be administered first by the IV/IO route?

1. Epinephrine 1 mg
2. Vasopressin 20 units
3. Sodium bicarbonate 50 mEq
4. Atropine 1 mg