When water is exposed to a sterile drape or gown, it can cause ____________, which occurs when moisture from either side of the drape serves as a vehicle for bacteria to infiltrate the drape from the nonsterile surface
A. resident flora C. airborne contamination
B. transient flora D. strike-through contamination
ANS: D
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Which type of hypoxia is characterized by a normal PaO2 with either a low hemoglobin or a reduced oxygen carrying capacity of the hemoglobin?
A. circulatory B. anemic C. hypoxemic D. histotoxic
Why does increasing the FIO2 of a patient who has severe hypoxemia from capillary shunting have no effect on the patient's oxygenation?
A. because capillary shunting affects the PaCO2 more than it does the PaO2 B. because a large amount of the patient's ventilation is wasted C. because most of the ventilation enters normal alveoli in the apices where saturation is already 100% D. because gas exchange does not occur in alveoli devoid of perfusion
Physician assistants are able to practice medicine in their own medical offices
Indicate whether the statement is true or false
A 42- year old man was ejected from his car after it struck a bridge pillar at a high rate of speed. You find him lying approximately 50' from the car. After manually stabilizing his head, your next action should be to
A. assess the quality of his breathing B. grasp the angles of the jaw and lift C. administer high-concentration oxygen D. determine the patient's level of consciousness