Which statement BEST describes how muscles respond to weight training? A Weight training stretches the muscles limits and makes the muscles longer
B Weight training pushes the muscles' abilities, making the muscles gain endurance
C Weight training stimulates the muscles and causes the muscle fibers to sit closer together
D Weight training overloads muscles, which causes the body to respond by making muscle fibers
larger

20 times a minute is usually the average respritory rate of an adult. additionally the patient is breathing on his own, is clearly maintaining his airway, and is intaking a sufficient amount of air. you shouldn't use a bag valve mask, cpap, or other form of positive pressure ventilation, unless the patient has lost control of his airway, and is not breathing (apneic) or has rapid breathing or slow and shallow respirations. this patient would most likely and should be put on an non-rebreather mask or nrb attached to 100% high flow oxygen at 15 l/min. don't use a nasal cannula, as the amount of oxygen it provides is limited with a rate of 6 l/min.