A nurse finds a client in bed, unresponsive and breathing. Which of the following actions should the nurse take first?

A. Initiate cardiac monitoring for the client is incorrect as the first action because cardiac monitoring is important for ongoing assessment but does not immediately assess the client’s life status. Initial priorities focus on airway, breathing, and circulation (ABCs). B. Apply a blood pressure cuff is incorrect because obtaining vital signs is not the immediate priority in an unresponsive client. Assessing circulation comes after confirming airway and pulse. C. Establish an IV access is incorrect as the first action. IV access is important for medication administration or fluids but is secondary to assessing circulation and responsiveness. D. Palpate for the client's carotid pulse is correct. According to the ABC priority framework, after ensuring the client is breathing, the next step is to assess circulation by checking for a pulse. The carotid pulse is the most reliable in an unresponsive adult. This action determines whether immediate resuscitation interventions (e.g., CPR) are needed.