The nurse is caring for a patient diagnosed with uncontrolled asthma. The nurse realizes that this diagnosis will affect which element of the patient's pulmonary gas exchange?
1. diffusion
2. perfusion
3. ventilation
4. removal
3
Rationale: Restrictive pulmonary disorders, such as uncontrolled asthma, will impair ventilation. Diffusion impairments are seen in pneumonia, lung cancer, and conditions that cause pulmonary edema. Perfusion impairments are seen in anemia, carbon dioxide poisoning, hemorrhage, and pulmonary embolism. Removal is not an element of pulmonary gas exchange.
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