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71.The efficiency of the human heart is a beautiful thing. All four chambers work in a beautiful, synchronized effort to do one thing well: push blood. When disease compromises the heart’s ability to function, the result is often a reduction in “ejection fraction” (EF) or the percentage of the end diastolic volume ejected with each contraction. What is a normal value for EF at rest?
72.One of the methods that fitness facilities use to reduce risk is to make use of screening questionnaires, especially for members who are at high risk for cardiovascular disease. Which of the following is an example of such a screening tool?
73.Departing the club after teaching a particularly stellar Weight Training class, you notice a woman lying at the bottom of the stairs, moaning and clutching her ankle. As the first responder on the scene, you assess the situation and note the following signs and symptoms in the victim’s ankle: significant swelling, bruising, an inability to weight bear, and a difference in angle and positioning from the other side. Which of the following is MOST likely to be the cause?
74.In an emergency situation, skin color can provide excellent insight into a victim’s health status. Grayish, pale skin is MOST indicative of which of the following:
