ECCO Caring For Patients With Cardiovascular Disorders Part 1 Practice Test

When a STEMI patient suddenly develops difficulty breathing and a change in mental status, the immediate priority is securing the airway and ensuring adequate ventilation. These signs point to potential respiratory failure or impending airway compromise, and altered consciousness raises the risk of airway protection being lost. Endotracheal intubation with mechanical ventilation provides a controlled airway, improves oxygenation and CO2 removal, and reduces the work of breathing, helping to stabilize both respiratory and hemodynamic status. Oxygen by itself may be necessary, but it doesn’t protect the airway or rapidly correct severe respiratory failure. Morphine can depress respiration and lower blood pressure, which is undesirable in an acute MI with potential hemodynamic instability. A diuretic might help if there is fluid overload, but it does not address an acutely failing airway or respiratory drive. Therefore, preparing for airway protection and ventilation is the most appropriate action in this scenario.