Know how to treat the patient with the best treatment
Answer: it would be good to be a CNA if you can. They have classes many times in 11th grade where you can go to hospitals or nursing homes to help and get paid! Many times nurses will let you shadow them in the hospital.
Explanation:
Both A and B are correct.
Answer:
The baby starts breathing
Explanation:
While in the womb, a fetus has its oxygen delivered to it, and the waste products removed (all via the mother's bloodstream), so there is no reason to separate all the chambers of the heart while still in the womb.
However, once the baby is born and it is breathing, the chambers need to differentiate in order to allow the blood to reach the lungs, and the oxygenated blood and deoxygenated blood do not mix.