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6. What rate of rewarming should be used for passive rewarming?
- 1 degree per hour
- 2 degrees per hour
- 5 degrees per hour
- 1.5 degrees per hour
7. What is the hunting reflex?
- Increased muscle tone via recruitment of brown adipose tissue
- Rapid skin cooling as a response to cold shock
- Fluctuation in vasoconstriction and vasodilation
- Mechanical action of ice crystals resulting in tissue death
8. What is NOT a factor contributing to hypothermia?
- Age
- Race
- High wind speed
- Fatigue
- Clothing
- Rain
- Starvation
- Shock
- Body size and composition
9. Below what temperature are peripheral tissues at risk for developing frostbite?
- -0.5 degrees
- -10 degrees
- -5 degrees
- -17 degrees
10. In a temperature of -29 degrees, with a wind chill of 10mph, what does the temperature feel like?
11. What is not a response of mild hypothermia?
- Intense cold sensation
- Intense shivering
- Unconsciousness
- Peripheral vasoconstriction
- Irritability
12. What is not an action of Rho kinase after it has been activated by increasing levels of free radicals?
- Deactivates myosin light chain
- Promotes adrenergic receptors
- Inhibits myosin light chain kinase
- Inhibits myosin light chain phosphatase
- Results in vasoconstriction
13. Rescue from cold water immersion can result in death
14. For what body temperature is passive rewarming necessary?
- Below 30 degrees
- Below 32 degrees
- Below 34 degrees
- Below 37 degrees
15. What happens to permeability of small blood vessels from freezing?
16. Thermoregulatory responses begin to fail during what stage of hypothermia?
- Mild
- Moderate
- Extreme
- Severe
17. Below what temperature does severe hypothermia occur?
- 30 degrees
- 32 degrees
- 35 degrees
- 29 degrees
18. Exercise training can enhance what cold response?
- Hunting reflex
- Shivering
- Cold shock response
- Sensing acute cold
19. What is not a category of hypothermia?
- Severe
- Extreme
- Moderate
- Mild
20. Cold, wet feet induce
- Vasoconstriction
- Vasodilation