The practical nurse (PN) and unlicensed assistive personnel (UAP) enter a client's room and find the client lying on the bed. The PN determines that the client is unresponsive. Which instruction should the PN give the UAP first?

A. Feel for a carotid pulse: Assessing for a carotid pulse is part of the initial CPR sequence, but it should not delay activating emergency assistance. The PN should first ensure help is on the way before further assessment steps are performed. B. Bring a glucometer to the room: Checking blood glucose is appropriate only after confirming that the client has a pulse and is breathing. In an unresponsive client, the immediate priority is to secure emergency assistance and begin basic life support if indicated. C. Check the blood pressure: Measuring blood pressure is not the first priority when a client is found unresponsive. Rapid assessment of responsiveness, breathing, and pulse should occur after calling for help, not detailed vital sign measurements. D. Obtain emergency help: Activating the emergency response system ensures immediate support from the resuscitation team or emergency services. This is the first and most critical step when a client is found unresponsive to initiate timely life-saving interventions.