Astudent fell down while running on the trail. the bone is protruding. the swollen and painful led is severely bruised. what is the immediate risk? and the first steps to take?

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.