In caring for a brain-injured patient with damage to the cortex, which changes in respiratory and ventilatory efforts would the nurse expect to observe?
1. Increased rate of breathing per minute
2. Increased respiratory effort by the use of chest and diaphragm muscles
3. Decreased voluntary initiation of ventilatory effort
4. Decrease in CO2 in blood analysis
3
Rationale 1: This would not occur because of damage to the cerebral cortex.
Rationale 2: This would not occur because of damage to the cerebral cortex.
Rationale 3: The cerebral cortex regulates voluntary ventilatory effort. In the patient with injury to the cortex, voluntary initiation of respirations will decrease.
Rationale 4: This would not occur because of damage to the cerebral cortex.
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