When the heart contracts it then relaxes, and the ventricles fill with blood from the body's veins. This action is called ____, the phase when the heart is at rest.

Which of the following factors are predictors of success of NPPV? I. intact neurologic function II. APACHE II score greater than 30 III. pH of 7.25 or less IV. intact dentition

A. I, IV only B. II, III only C. I, II, III only D. II, III, IV only

When a person has Guillain-Barré syndrome, how are peripheral nerves affected?

a. They hypertrophy. b. They fail to reproduce. c. The myelin sheath is removed. d. Schwann cells attack the peripheral nerves.