________ Eating and drinking the wrong foods can negatively affect metabolism by slowing it down

Muscle tone is produced by:

a. Activation of a small number of motor units throughout the muscle b. Stress c. Activation of the lateral corticospinal tracts d. Pathologies affecting muscle and nerve

A 67-year-old female presents with difficulty breathing and chest discomfort that awakened her from her sleep. She states that she has congestive heart failure, has had two previous heart attacks, and has prescribed nitroglycerin. She is conscious and alert with adequate breathing. Her blood pressure is 94/64 mm Hg and her heart rate is 120 beats/min. Treatment for this patient includes:

A. nitroglycerin for her chest pain. B. ventilations with a bag-mask device. C. oxygen at 4 L/min via nasal cannula. D. placing her in an upright position.