When performing surveillance at a pool with play structures

 When performing surveillance at a pool with play structures a lifeguard should clear everyone from the water At the first sound of thunder or sighting of lightning.

Elevated stations usually give the foremost effective position for patron surveillance as a result of they provide a wonderful place for scanning the world of responsibility. this kind of station usually provides a far higher read of patron activities than alternative positions and is especially necessary at one tender facility.

Oxygen is put into the blood, as it passes through. it is then parted into two different groups blood with carbon dioxide and blood with oxygen