According to ____, as altitude increases and pressure decreases, gas expansion causes the available oxygen to decrease as gas molecules move farther apart.

Which of the following medications should be considered for the treatment of MRSA VAP? I. vancomycin II. trimethoprim/sulfamethoxazole III. linezolid IV. cloxacillin

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

As you are ventilating an apneic patient using the one-person bag-valve-mask technique, you note minimal rise of the chest each time you squeeze the bag. You should

A. ensure that the reservoir is attached to the bag-valve-mask device. B. squeeze the bag harder to ensure delivery of adequate tidal volume. C. suction the patient's mouth for 15 seconds and reattempt ventilations. D. evaluate the mask-to-face seal and the position of the patient's head.