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Ch19 - Chapter 19 Heat and Cold-Related Emergencies...

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Chapter 19 Heat- and Cold-Related Emergencies OBJECTIVE 1: DESCRIBE HOW BODY TEMPERATURE IS CONTROLLED. Class: Recall, Difficulty: Average 1. The normal body temperature is— a. 35° C. b. 96.8° F. c. 98.6° F. d. 39° C. Class: Recall, Difficulty: Average 2. Excess heat is removed from the body when blood vessels— a. Near the heart constrict, reducing blood flow and bodily activity. b. Near the skin constrict, keeping blood from being warmed at the surface. c. Near the skin dilate, bringing more warm blood to the surface. d. Near the lungs dilate, bringing more warm gases out through the lungs. Class: Interpret, Difficulty: Average 3. The body’s first reaction to cold is to constrict the blood vessels near the skin, moving warm blood to the center of the body. What is the body’s next reaction? OBJECTIVE 2: IDENTIFY THREE MAIN FACTORS THAT INFLUENCE HOW WELL THE BODY MAINTAINS ITS TEMPERATURE. Class: Analyze, Difficulty: Average 4. Your next door neighbor has been working outside all day on a project in her back yard. When you go over to visit her, you find her sitting outside on a lawn chair. She seems to be disoriented and has rapid, shallow breathing. Her skin is also bright red and hot to the touch. What might be your neighbor’s problem, and how might you help care for her?
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Your neighbor might be suffering from heat stroke. Call 9-1-1 or the local emergency number immediately, then remove her to a cooler area. Cool her body using soaked towels or running water. Monitor her breathing and level of consciousness. Take steps to minimize shock. Class: Analyze, Difficulty: Average 5. You are walking past a construction site on a hot day when you notice one of the workers staggering about. The man is sweating profusely and tells you that he feels weak and dizzy. What might be this person’s problem, and how might you help care for him? This person might be suffering from heat exhaustion. Remove the victim to a cooler environment and take steps to cool his body (such as loosening or removing heavy clothing). Have the victim drink cool water, and take steps to minimize shock. OBJECTIVE 3: IDENTIFY SEVEN RISK FACTORS THAT INCREASE A PERSON’S SUSCEPTIBILITY TO A HEAT- OR COLD-RELATED EMERGENCY.
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