Question

a 25 - year - old female collapses and becomes unresponsive. you witness her collapse and are the first rescuer at the scene, where the woman is lying motionless on the floor. you verify that the scene is safe for you and the victim. the woman doesnt respond when you tap her shoulders and shout, \are you ok?\ what is your best next action?
check her pulse
shout for nearby help
start providing rescue breaths
start high - quality cpr

Explanation:

When encountering an unresponsive person, after ensuring scene safety and confirming unresponsiveness, the next step is to call for help. This is because additional assistance (like getting an AED or more rescuers) can improve the victim's chances. Checking the pulse may waste time if not done correctly. Rescue breaths without checking for breathing (after pulse check) is not appropriate. Starting CPR without confirming cardiac arrest (which involves checking pulse and breathing) may not be necessary if the person has a pulse. Shouting for help is crucial as it brings more resources to the scene.

Answer:

Shout for nearby help.