This is not a book suggestion per se, but a clarification about "pre-hospital care" before contemporary biomedicine.

In Europe, the medieval to early modern equivalent of a 'paramedic' or someone who immediately addressed trauma wounds would be a surgeon. By contemporary standards, there was little in the way of emergency medicine until much later. Modern-day EMTs only began to originate after the advent of ambulatory services in the 19th century (see this article.) Triage (the process of assessing and sorting medical cases based on priority for later treatment) also wouldn't be developed until the early 19th century. In other words, if you are curious about the history of what we understand is "emergency medicine," be sure to look from the 19th-20th centuries onward.

Until this time, physicians and related medical professionals frequently made house calls for civilian cases, or (on the battlefield) they staffed crude medical quarters or a sick bay if they were a naval surgeon. There was little patient transport or care in between, which often meant patients with serious injuries who were not in the immediate care of a medical professional would likely die. Patients were treated directly by a physician, surgeon, or other caregiver (maybe a surgeon's mate or apprentice); there were no steps in between, aside from perhaps home remedies for less serious injuries. Finally, remember that before modern anesthesia, wound care, and asepsis practices that emerged in the 19th-20th centuries, serious traumatic injuries (especially to the abdomen) were almost universally fatal and largely untreatable. Without immediate intervention, other wounds like damaged extremities could lead to a quick death from arterial bleeding. This would have meant a slim survival rate from time of injury, to transport, to treatment, meaning that physicians/surgeons would have only been able to successfully intercede when there was no transport period separating initial trauma from treatment.

As for reading suggestions. If you're interested in early battlefield medicine, I would read up on Ambroise Pare. Pare was an early modern (16th century) combat surgeon in France who radically changed the way gunshot and other trauma wounds were treated. Hope this is informative!

This was extremely informative thank you so much!