What is the priority nursing action for a patient exhibiting signs of respiratory distress?

Administering oxygen therapy is the priority action for a patient exhibiting signs of respiratory distress because it directly addresses the immediate need for improved oxygenation. Respiratory distress is often characterized by inadequate gas exchange, which can lead to hypoxia and compromise vital organ function. By providing supplemental oxygen, the healthcare provider can help increase the oxygen saturation in the patient's bloodstream, alleviate the symptoms of distress, and stabilize the patient's condition.

While calling for assistance, reassuring the patient, and elevating the patient’s head are important steps in managing respiratory distress, they do not directly enhance the patient's breathing or oxygen levels. Calling for assistance is crucial in ensuring that additional help and resources are available, but it should not replace the immediate need to support the patient’s oxygenation. Reassurance can help calm the patient but will not address the physiological issue at hand. Elevating the patient's head can facilitate easier breathing, particularly in those with certain conditions like heart failure, but it still does not directly provide the necessary oxygen support that the patient may urgently require.