Exercise and Thermoregulation — MCQs

All of the following are involved in the pathogenesis of heat stroke EXCEPT:

HR-180, BP-60/40, temp-39.5°C, ETCO2-65 post induction. Most likely diagnosis:

The first physiological response to high environmental temperature is:

Which of the following laboratory findings would you expect in a patient with heatstroke?

In human beings, the least useful physiological response to low environmental temperature is:

A 17-year-old boy is admitted to the hospital with a traumatic brain injury, sustained when he fell off his motorcycle. He develops a fever of 39°C, which is unrelated to an infection or inflammation. The fever is most likely due to a lesion of which of the following?

A cold exposure which is expected to bring the body temperature from 37°C to 20°C, actually brings it down to only 36.5°C. Calculate the 'Gain' of the thermoregulatory system.

Lesion of preoptic nucleus of hypothalamus is associated with which of the following conditions?

Which of the following measurement sites most closely reflects core body temperature?

A 55-year-old alcoholic man is admitted to the ICU with septic shock. Despite appropriate antibiotics and fluid resuscitation, he remains hypotensive. His core temperature is 95°F (35°C). Blood pressure improves only after active rewarming is initiated. Analyze the mechanism by which hypothermia contributed to his refractory hypotension.