A patient is rushed to the emergency room after being found unconscious at home. His blood pressure is 70/35. The nurse anticipates an order for what medication?

Number 1 is correct.

Atropine is used for patients with pronounced bradycardia to regulate heart rate. Amiodarone and adenosine are used with tachycardic patients, and magnesium sulfate is used for ventricular tachycardia or ventricular fibrillation.