Why does splashing cold water on the skin stimulate ventilation?
a. It decreases medullary inspiratory activity causing hyperpnea.
b. Hering-Breuer inflation reflex.
c. It increases medullary inspiratory activity causing hyperpnea.
d. J receptor.
Q. 2 Which of the following can be considered a purpose of the interview the RT performs? 1. To collect diagnostic information 2. To establish a rapport with the patient 3. To identify plans for payment 4. To identify the effect of therapy
a. 1 and 4 only
b. 2 and 3 only
c. 1, 2, and 4 only
d. 1, 2, 3, and 4
Q. 3 A healthy 33-year-old woman relocates to an area approximately 8000 ft above sea level. On her first day, she begins to hyperventilate, but in 24 hr she shows signs of recovery. What is the probable cause of her condition?
a. Hypoxemia-mediated hyperventilation
b. Hypercapnia
c. Hyperoxia-mediated hyperventilation
d. Increased H+
Q. 4 A patient in the emergency room is displaying prolong inspiratory gasps interrupted by occasional expirations, what serious injury should be suspected on this patient?
1. Pneumotaxic center has been severed.
2. Vagus nerve has been severed.
3. Glossopharyngeal nerve has been severed.
a. 2 and 3 only
b. 1 and 2 only
c. 1 and 3 only
d. 1, 2, and 3
Q. 5 In patients with closed-head injuries, what may happen in the presence of hypercapnia?
a. High CO2 increases the risk of psychotic events.
b. High CO2 levels cause cerebral vasodila-tion and improved oxygenation.
c. Severe cerebral vasoconstriction results in anoxia and stroke.
d. Vasodilation causes increased intracranial pressure and possibly stops blood flow.