Which FM is associated with First Aid?

The correct choice relating to First Aid is FM 4-25.1. This field manual provides comprehensive guidance on the principles and techniques of first aid in a military context, including how to assess and treat injuries, manage emergencies, and provide life-saving interventions on the battlefield. It emphasizes the fundamental skills necessary for soldiers to respond effectively to various medical emergencies and ensures that personnel are prepared to address the health needs of themselves and their fellow soldiers in critical situations.

The other options pertain to different aspects of military training and operations. FM 6-22 focuses on leadership and the responsibilities of leaders in the army, FM 7-0 covers training for soldiers and units, and FM 3-23.30 addresses the use of firearms and military marksmanship. Each of these manuals serves a specific function that does not directly relate to first aid practices and protocols.