Question 17

The Correct Answer is C **Why Option C (The patient is suffering from moderate hypothermia) is correct:** The scenario describes critical signs indicative of moderate to severe systemic hypothermia. Hypothermia is defined as a core body temperature below $35^\circ$C ($95^\circ$F). * **Confusion:** Altered mental status (confusion, lethargy, poor coordination) is a hallmark sign when the core temperature drops below approximately $34^\circ$C ($93.2^\circ$F), placing the patient firmly in the moderate hypothermia range ($30^\circ$C–$34^\circ$C or $86^\circ$F–$93.2^\circ$F). * **Cessation of Shivering:** Shivering is the body’s primary mechanism for generating heat (thermogenesis). Shivering typically stops or becomes severely diminished when the core body temperature drops below approximately $32^\circ$C ($89.6^\circ$F). This paradoxical cessation of shivering indicates that the body's compensatory mechanisms have failed and the patient is moving into a critically depressed state, defining moderate hypothermia. **Why the other options are incorrect:** * **A) The patient is suffering from mild hypothermia:** Mild hypothermia is characterized by core temperatures between $32^\circ$C–$35^\circ$C ($89.6^\circ$F–$95^\circ$F). In this stage, the patient is typically conscious, alert, and **shivering vigorously** to generate heat. The scenario explicitly states the patient has **ceased shivering** and is **confused**, ruling out the mild stage. * **B) The patient is suffering from frostnip:** Frostnip is a minor, superficial, reversible cold injury affecting only the skin (usually ears, nose, fingers, or toes). It does not involve systemic cooling or result in confusion or the cessation of shivering. * **D) The patient is suffering from frostbite:** Frostbite is a localized tissue injury where tissues are actually frozen. While exposure off the coast of Greenland makes frostbite likely, the symptoms described (systemic confusion and cessation of shivering) refer to a generalized, life-threatening **systemic** condition (hypothermia), not a localized injury. The most immediate threat to life is the systemic core temperature loss.