Check their level of responsiveness. Shout "hey can you hear me?" and squeeze their shoulder. No response then send someone to call 911 IMMEDIATELY while you begin chest compressions.
The 2010 American Heart Association CPR guidelines state C-A-B (Circulation, Airway, Breathing) as the most important. This differs from regular first aid in which the order is A-B-C. Research has shown that immediate compressions are beneficial and can deliver oxygen to the brain.
If you DON'T have a CPR Mask DO NOT do rescue breaths (unless its a family member). The risk of infection is too great. Continue with compression only CPR until help arrives.
If you are by yourself, stop CPR after 2 minutes and go call 911.
I strongly recommend you take a first aid or CPR course.
A boat collapses when the engine is not functioning well.
When a volcano collapses on itself a caldera is then formed.
When rock above a cave collapses, a sinkhole is formed.
pulsar star and if it collapses even more a Black hole.
The collapses star gets squeezed by collapses gas and turns into a black hole.
When a volcano collapses a very wide crater is called a caldera.
A caldera.
It is when the trachea collapses
Yes, if the star is massive enough when the core collapses a supernova explosion happens.
When a volcanic cone collapses it forms a caldera.
When rock above a cave collapses, it forms a sinkhole. Sinkholes are depressions in the ground that are often caused by the erosion of underground caves or channels.
If the gravitational field of the sun collapses, the earth is likely to come to an end.