Free WFR Environmental Hazards & Survival Skills Questions and Answers

Question 1

What is the first step in treating mild hypothermia in the wilderness?

Accepted Answer

Remove wet clothing and replace with dry layers.

Answer

The first and most critical step in treating mild hypothermia is to remove any wet clothing and replace it with dry layers. Wet clothing rapidly conducts heat away from the body through evaporation and conduction, exacerbating heat loss. Removing it stops this ongoing heat loss and allows the patient to begin rewarming more effectively.

Question 2

Which of the following is a sign of heat stroke (a life-threatening emergency)?

Accepted Answer

Confusion and lack of sweating.

Answer

Heat stroke is a life-threatening emergency characterized by a dangerously elevated core body temperature and central nervous system dysfunction. Key signs include confusion, altered mental status, and often a lack of sweating (anhidrosis) because the body's thermoregulatory mechanism has failed. Unlike heat exhaustion, profuse sweating is typically absent in heat stroke.

Question 3

How should you treat a snakebite from an unidentified venomous snake in the field?

Accepted Answer

Immobilize the limb and keep it below heart level.

Answer

For an unidentified venomous snakebite, the best field treatment is to immobilize the bitten limb and keep it at or below heart level. Immobilization helps slow the spread of venom through the lymphatic system, while keeping it below heart level reduces blood flow to the area, further limiting systemic absorption. Avoid methods like cutting, sucking, or applying ice/tourniquets, as these are harmful or ineffective.

Question 4

What is the primary cause of altitude sickness?

Accepted Answer

Low oxygen levels at high elevation.

Answer

Altitude sickness is primarily caused by the reduced atmospheric pressure at high elevations, which results in lower partial pressure of oxygen (hypoxia). This means there is less oxygen available for the body to absorb with each breath. The body struggles to adapt to this oxygen deprivation, leading to symptoms like headache, nausea, and fatigue.

Question 5

Which action is most effective to prevent frostbite in subzero conditions?

Accepted Answer

Using hand warmers and dry gloves.

Answer

To prevent frostbite in subzero conditions, the most effective action is to keep extremities warm and dry. Using hand warmers and wearing dry, insulated gloves provides direct heat and prevents heat loss through conduction and evaporation. Maintaining warmth and dryness is crucial as wetness and cold are primary contributors to frostbite.

WFR - Wilderness First Responder Practice Test

WFR - Wilderness First Responder Practice Test

Free WFR Environmental Hazards & Survival Skills Questions and Answers