â¢ The critical path is defined as the longest path through the CPM network and consists of those activities. that determine the shortest time for project completion. Activities within this or list form a series (or. sequence) of logically connected activities that is called the critical path.
Time is very important when an unconscious person is not breathing. Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later. Machines called automated external defibrillators (AEDs) can be found in many public places, and are available for home use.
Answer: Just like you can hold your breath for a minute or two without having brain damage, patients in cardiac arrest can go a minute or two (actually a lot longer than that) without taking a breath. What cardiac arrest patients really need is for that blood to get flowing again. Any delay in blood flow reduces survival.