A nurse is caring for a client who has a respiratory infection and heart failure. The client is on bed rest and is lying flat in bed. The client's oxygen saturation is 92

Choice A rationale Keeping the client flat and asking them to breathe deeper is inappropriate because the supine position increases abdominal pressure on the diaphragm, which can restrict lung expansion and worsen dyspnea and hypoxemia. Furthermore, simply asking a client with heart failure and a respiratory infection to breathe deeper does not address the underlying causes of their current oxygen desaturation. Choice B rationale Raising the head of the bed to a high Fowler's position (60 to 90 degrees) is the immediate priority intervention to manage the client's oxygen saturation of 92 percent, as this position significantly reduces venous return to the heart, decreasing preload and alleviating pulmonary congestion. This gravity-dependent effect also maximizes diaphragmatic excursion and improves overall lung ventilation and perfusion matching. Choice C rationale While administering supplemental oxygen may be necessary, raising the head of the bed is the most immediate and non-invasive action that the nurse can take independently to improve lung mechanics and gas exchange. The client's saturation of 92 percent (normal is 95 to 100 percent) indicates mild hypoxemia, making the position change the critical first step before or alongside initiating oxygen therapy. Choice D rationale Notifying the provider is an essential action after implementing immediate interventions to stabilize the client, such as repositioning and potentially administering oxygen, as per standing orders or protocol. The nurse must first address the hypoxemia and respiratory distress with independent nursing actions before seeking further orders or reporting the client's condition, unless the situation is immediately critical and life-threatening.