Bifalgorithm post

First, ensure that the person is on their back on a firm, flat surface, such as the ground. Kneel beside them, like this, with your knees near the person's body, and spread about shoulder width apart. Place the heel of one hand in the center of their chest with your other hand on top. Interlace your fingers and make sure they are up off the chest. Position your body so that your shoulders are directly over your hands. Lock your elbows to keep your arms straight. When giving compressions, push hard and obvious sign of life like breathing and AED is ready. A trained responder is available to take over compressions, EMS personnel arrive and begin their care of the person. You are alone and too tired to continue or the scene becomes unsafe.

First, ensure that the person is on their back on a firm, flat surface, such as the ground. Kneel beside them, like this, with your knees near the person's bod…