What is the initial dose of epinephrine in cardiac arrest for adults?

The initial dose of epinephrine in cardiac arrest for adults is 1 mg given intravenously (IV) or intraosseously (IO). This dosage is based on the guidelines from advanced cardiovascular life support (ACLS) protocols.

Epinephrine works by increasing peripheral resistance through alpha-adrenergic receptor activity, which can help restore coronary and cerebral perfusion pressures during resuscitation efforts. The dosing is standardized to ensure an effective pharmacological response; 1 mg is the established initial dose that can be repeated every 3-5 minutes during cardiac arrest, allowing for timely interventions to improve patient outcomes.

Understanding this dosage is crucial for effective management of cardiac arrest situations. Other dosages, while they may seem reasonable, do not align with current recommendations for adult resuscitation and could potentially result in inadequate treatment.