When planning care to improve oxygenation for a patient with respiratory failure, the nursing plan includes turning and positioning the patient regularly. What rationale does the nurse give for this intervention?
A) Turning reduces lung expansion.
B) Turning maximizes the use of all lung zones.
C) Turning reduces ventilation-perfusion matching.
D) Turning reduces the work of breathing.
B) Turning maximizes the use of all lung zones.
Explanation: A) Turning the patient regularly promotes expansion of different portions of the lungs.
B) Turning the patient regularly rotates and maximizes lung zones to assist V-Q matching.
C) Turning the patient regularly rotates and maximizes lung zones to assist V-Q matching.
D) Turning does not reduce the work of breathing.
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