Wilderness First Responder (WFH) Practice Exam

During severe hypothermia, the body's core temperature drops significantly, leading to a slowing of physiological processes. As the body struggles to maintain its normal functioning, the risk of systemic failure increases. This is due to the inability of the body to efficiently regulate its vital functions, causing issues such as impaired heart rate, slowed metabolism, reduced circulation, and altered neurological function.

As the body temperature falls, all organ systems are affected, which can lead to complications such as arrhythmias, loss of consciousness, and in severe cases, organ failure. Therefore, as the temperature continues to drop and hypothermia worsens, the risks associated with these systemic failures increase, making this the most accurate description of what occurs in severe hypothermia.

Other options, such as the body functioning normally or temperature stabilizing, misrepresent the physiological impacts of severe hypothermia, as the body is in a state of distress rather than homeostasis. Similarly, the idea that breathing becomes more rapid contradicts what typically occurs during hypothermia, where respiratory rates often decrease.