For most people, which type of exercise is most effective for stress relief?

You respond to a construction site and find a worker lying supine in the dirt. He has been hit by a heavy construction vehicle and flew more than 15' before landing in his current position. There is discoloration and distention of his abdomen about the RUQ. He is unconscious and his respirations are 10 breaths/min and shallow, with noisy gurgling sounds. After opening the airway, your next priority is to:

a. provide oxygen at 6L/min via nonrebreathing mask b. provide oxygen at 15L/min via nasal cannula c. assist respirations d. suction the airway

Identify two basic types of hay. Give examples of each type