What is the initial treatment for unstable bradycardia according to the ICEMA protocol?

The initial treatment for unstable bradycardia according to the ICEMA protocol involves the administration of oxygen, intravenous access, performing an EKG, and providing a 300ml bolus of normal saline. This approach focuses on stabilizing the patient and ensuring proper oxygenation and fluid balance, which are critical during a bradycardic episode.

Bradycardia can lead to decreased cardiac output and hypotension, necessitating immediate supportive care and intervention to address these life-threatening symptoms. Initiating a bolus of normal saline helps to increase intravascular volume, which can improve blood pressure and perfusion to vital organs.

Other options involve specific medications or interventions that are typically considered after the initial supportive measures. For instance, administering atropine might be applicable in certain stable bradycardia cases but is not the first line for unstable bradycardia as per ICEMA’s protocols. Synchronized cardioversion and defibrillation are more appropriate for tachycardic rhythms and serious arrhythmias rather than bradycardia, making supportive care the foremost priority in unstable situations. Thus, option C is aligned with established protocols for managing unstable bradycardia effectively.