Wilderness First Aid for Backpacking

In the backcountry, first aid includes the hours after the first treatment. The group must protect the patient from weather, watch change, communicate, and decide whether to leave.

This note sets a practice frame. It does not replace a hands-on Wilderness First Aid course.

Start with the scene

Do not create a second patient. Check falling rock, water, lightning, fire, traffic, animals, cold, heat, and group safety before approaching.

Then assess immediate threats to airway, breathing, circulation, and severe bleeding. Call emergency services or send an SOS early for a life threat. Follow dispatcher instructions and work within your training.

NOLS Wilderness First Aid courses teach a patient assessment system, common outdoor injuries and illness, environmental emergencies, and evacuation decisions.¹ That linked process matters more than memorizing isolated treatments.

Build a patient record

Record:

what happened and when;
the main complaint;
level of alertness;
breathing and pulse trends when you know how to measure them;
pain, injuries, and symptoms;
allergies, medicines, health history, last food and drink, and events;
care given and the response;
weather, location, route out, and communication.

Repeat the assessment. Change over time often decides the evacuation.

Protect the patient from cold, heat, rain, sun, and ground. Keep the group fed, hydrated, and organized so care can continue.

Decide how help arrives

Before each trip, name:

the emergency number or agency;
where a phone or satellite messenger may work;
coordinates and map datum;
safe helicopter or responder access points if known;
the walk-out routes;
who stays with the patient;
who can travel for help;
what overdue contact at home will do.

An SOS device does not promise a quick rescue. Give location, problem, number of patients, immediate threats, care given, group resources, and weather. Conserve device power and keep checking for replies.

Seek urgent help

Call emergency services for a person who does not respond, does not breathe normally, has life-threatening bleeding, or has another clear threat to life. The Red Cross tells first aiders to call 911, get equipment, and give care within their training in these cases.²

For other problems, use the patient assessment and evacuation framework taught in a current wilderness first-aid course. A condition that the group cannot assess, protect, or monitor calls for outside medical guidance rather than a guess.

Wilderness Medical Society guidelines cover specific illnesses and injuries, while the person’s training and local medical direction control care.³

Practice drills

Take a course, then run short cases:

One person describes a fall, illness, or allergic reaction.
The team checks scene safety and performs its assessment.
Someone records findings and trends.
Someone sends a mock call with location and patient facts.
The group chooses stay, self-evacuate, or call for rescue.
The patient changes, and the group reassesses.

Practice opening the kit in rain and darkness. Replace used and expired items. Carry only medicines the group knows how to use and that the intended person can take.

Common failures

People treat the visible wound and miss the scene, cold, head injury, or change in alertness. They send the strongest hikers away without a communication and return plan. They wait for certainty before calling, lose the timeline, or assume the emergency beacon ends patient care.

backpacking group decisions should assign care, communication, shelter, navigation, and notes without leaving the patient alone.

Go Deeper

NOLS Wilderness Medicine Courses — Hands-on Wilderness First Aid and Wilderness First Responder training.
Wilderness Medical Society Clinical Practice Guidelines — Current topic guidance for trained readers.
NOLS Wilderness Medicine by Tod Schimelpfenig — A field reference to pair with training.

Sources

NOLS, “Wilderness First Aid” course information, accessed July 20, 2026. ↩
American Red Cross, “First Aid for Someone Unresponsive and Breathing”, accessed July 20, 2026. ↩
Wilderness Medical Society, “Clinical Practice Guidelines”, accessed July 20, 2026. ↩