B is the most efficient answer
Answer:Valves stop blood flowing backwards
Explanation: Valve are flags of tissue that control the direction of the blood in our heart.,it prevent the backwards flow of blood. valves regulate blood from flowing back into the atria.The right and left atrio-ventricular valves prevent blood from flowing backwards into atria. When the ventricle is full,the valve prevent backwards flow of blood.
Defining decision:
decision is the action of a process of making choices especially important ones.
Providing 2 Strategies:
1.Create a constructive environment
2.Investigate the situation in detail
<span>Answer:
"Purpuric skin rash" nurse expect to encounter during a physical assessment.</span>
