Which of the following are potential causes of respiratory alkalosis? 1. Anxiety 2. Central nervous system depression 3. Hypoxemia 4. Pain
a. 1, 2, and 3 only
b. 1, 3, and 4 only
c. 1 and 4 only
d. 1, 2, 3, and 4
ANS: B
Hypoxemia causes specialized neural structures to signal the brain, increasing ventilation (see Chapter 14). Anxiety, fever, stimulatory drugs, pain, and central nervous system injuries are pos-sible causes of hyperventilation.
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