When the nurse enters the room of a male client who was admitted for a fractured femur, his cardiac monitor displays a normal sinus rhythm (NSR), but he has no spontaneous respirations and his carotid pulse is not palpable. Which intervention should the nurse implement?

A) Incorrect- Observing for swelling at the fracture site is important for assessing the client's musculoskeletal condition, but it is not the priority intervention in this situation. The absence of spontaneous respirations and palpable carotid pulse indicates cardiac arrest, and immediate intervention is needed. B) Incorrect- Analyzing the cardiac rhythm in another lead is not the first priority when the client is in cardiac arrest. Cardiopulmonary resuscitation (CPR) should be initiated immediately to restore circulation. C) Incorrect- Obtaining a 12-lead electrocardiogram is not the initial intervention in a client in cardiac arrest. CPR and defibrillation (if indicated) are the immediate actions to provide circulation and oxygenation to the vital organs. D) Correct- The absence of spontaneous respirations and palpable carotid pulse indicates cardiac arrest. In this situation, immediate initiation of cardiopulmonary resuscitation (CPR) is critical to provide circulation and oxygenation to the vital organs. Chest compressions are the initial step to address cardiac arrest and ensure blood flow to the body.