What is the definition of hypothermia?

Hypothermia is defined as an abnormally low body temperature, typically considered to be below 95°F (35°C). This condition occurs when the body loses heat faster than it can produce it, leading to a drop in core body temperature. It is a serious medical condition that can impair bodily functions, affecting the heart, nervous system, and other systems. Recognizing hypothermia is crucial, particularly in cold environments, as it can lead to severe health risks or even be life-threatening if not addressed promptly.

The other options refer to different states of body temperature: an abnormally high body temperature signifies hyperthermia, normal body temperature refers to the average healthy range (around 98.6°F or 37°C), and body temperature during fever indicates an elevated state due to illness or infection. Thus, the definition that accurately captures the characteristics of hypothermia is the one that states it as an abnormally low body temperature.