A nurse is cheering on participants in a marathon and one runner collapses nearby. He begins to vomit and complain of a throbbing headache. The nurse notes that he is not sweating, yet his skin is red and very hot to touch, and his pulse is 170 bpm and strong. The nurse knows that:

This helps increase the oxygen-carrying capacity of the blood and corrects anemia.

Choice B is wrong because erythropoietin is not given to all people with anemia. It is only used for certain types of anemia, such as those caused by chronic kidney disease or chemotherapy.

Choice C is wrong because erythropoietin is not given for iron deficiency anemia. Iron deficiency anemia is treated with iron supplements and dietary changes.

Choice D is wrong because erythropoietin does not stimulate bone marrow production of white blood cells. White blood cells are involved in immune responses and are produced by different growth factors.

Question 22.

Heat stroke is a serious condition caused by overheating of the body, usually as a result of prolonged exposure to or physical exertion in high temperatures. It can damage the brain and other internal organs, and can be fatal if not treated promptly.

Some of the symptoms of heat stroke are:

• High body temperature of 104 F (40 C) or higher

• Altered mental state or behavior, such as confusion, agitation, slurred speech, seizures or coma

• Lack of sweating despite the heat

• Red, hot and dry skin

• Rapid and strong pulse

• Throbbing headach

• Nausea and vomiting

Choice B is wrong because it is necessary to call 911 if someone has heat stroke. Heat stroke is a medical emergency that requires immediate attention and cooling of the body.

Choice C is wrong because it is not normal to vomit and not sweat during a marathon. Vomiting and lack of sweating are signs of dehydration and heat stroke, which indicate that the body is unable to regulate its temperature properly.

Choice D is wrong because getting the patient to a cooler, air-conditioned place will not reverse the heat exhaustion.

Heat exhaustion is a milder form of heat-related illness that can lead to heat stroke if not treated. Heat exhaustion symptoms include heavy sweating, weakness, dizziness, nausea and muscle cramps. Getting the patient to a cooler place may help with heat exhaustion, but heat stroke requires more aggressive cooling measures such as immersing the patient in cold water or applying ice packs to the body.