Answer: d. Preventing complications of hypoxia

Explanation: Oxygen therapy is indicated in clients with COPD to prevent complications of hypoxia, such as tissue damage and respiratory failure.

Incorrect choices: a. Maintaining oxygen saturation above 95% is not the primary indication for oxygen therapy in clients with COPD. Target oxygen saturation levels may be lower due to the risk of suppressing the respiratory drive.

b. Correcting underlying lung pathology may require other interventions but does not solely indicate oxygen therapy.

c. Relieving shortness of breath may be a beneficial outcome of oxygen therapy, but it is not the primary indication in this case.

Answer: c. Improving oxygen delivery to tissues

Explanation: In a client with pneumonia, the primary indication for oxygen therapy is to improve oxygen delivery to tissues and alleviate hypoxia.

Incorrect choices: a. Promoting lung expansion is a goal of oxygen therapy but is not the primary indication in this case.

b. Enhancing antimicrobial therapy is essential for treating pneumonia but is not directly related to the need for oxygen therapy.

d. Reducing the risk of bacterial resistance is not an indication for oxygen therapy but rather a consideration for appropriate antibiotic use.

Answer: d. Improving myocardial oxygenation

Explanation: In clients with CHF, the primary indication for oxygen therapy is to improve myocardial oxygenation and relieve symptoms of myocardial ischemia.

Incorrect choices: a. Reducing the workload of the heart is a potential benefit of oxygen therapy but is not the primary indication in this case.

b. Decreasing peripheral edema is not a direct indication for oxygen therapy.

c. Preventing fluid overload is important in managing CHF but does not directly relate to the need for oxygen therapy.

Answer: a. Increasing oxygen-carrying capacity

Explanation: In a client with anemia, the primary indication for oxygen therapy is to increase the oxygen-carrying capacity of the blood and improve tissue oxygenation.

Incorrect choices:

b. Reducing iron deficiency is a necessary intervention for managing anemia but is not the primary indication for oxygen therapy.

c. Promoting tissue healing may be a general benefit of adequate oxygenation, but it is not the primary indication in this case.

d. Enhancing erythropoiesis is important for treating anemia but does not directly relate to the need for oxygen therapy

Answer: d. Ensuring adequate oxygen supply to the brain

Explanation: In a client with a traumatic brain injury, the primary indication for oxygen therapy is to ensure adequate oxygen supply to the brain and prevent further neurological damage.

Incorrect choices:

a. Preventing cerebral edema is an important goal in managing a TBI, but it is not the primary indication for oxygen therapy.

b. Improving neurological function may be an eventual outcome of adequate oxygenation, but it is not the primary indication in this case.

c. Stabilizing blood pressure is crucial in TBI management, but it does not directly relate to the need for oxygen therapy.