What interventions are needed in the acute phase for a client with myocardial infarction?

In the acute phase of a myocardial infarction, the primary goal is to relieve pain, improve oxygenation, and minimize heart muscle damage. Morphine sulfate is crucial as it is an effective analgesic that helps alleviate severe chest pain associated with myocardial infarction. Additionally, morphine has the added benefit of reducing cardiac workload by decreasing anxiety and lowering oxygen demand.

Oxygen therapy is essential, especially if the patient's oxygen saturation levels are below 94% or if they exhibit signs of respiratory distress. Providing supplemental oxygen helps ensure that the heart muscle receives adequate oxygen, which is particularly important during acute ischemia.

The combination of morphine and oxygen addresses both symptoms and the underlying pathophysiological changes occurring during a myocardial infarction, making it a foundational intervention in the acute care setting. This approach is aligned with the "MONA" acronym often used in acute coronary syndrome management, which stands for Morphine, Oxygen, Nitroglycerin, and Aspirin, highlighting the initial interventions that enhance patient outcomes.

The other choices do not provide the appropriate interventions needed in the acute management of a myocardial infarction. Nitroglycerin is indeed important, but it is not combined with naloxone in the setting of an acute myocardial infarction;