What fire stage occurs as the fuel is consumed and oxygen concentration falls?

Which of the following occurs during the proper use of a nonrebreather mask?

a. The air inhaled by the patient will be recycled with oxygen. b. The mask is comfortable and well tolerated by all patients when properly applied. c. The mask can deliver between 80 percent and 90 percent oxygen. d. Oxygen is delivered into the lungs when the patient not inhaling.

Which is not retroperitoneal?

A) ascending colon B) pancreas C) transverse colon D) kidneys