Exhibits here Review H and P. What factors are important in determining the level of hypoxemia that the child may have experienced during the submersion? Select all that apply.

A) Correct- The duration of submersion is a critical factor in determining the potential level of hypoxemia. Prolonged submersion leads to a higher risk of severe hypoxia and its associated complications. B) Incorrect- While water temperature can affect the body's response to submersion, it is not directly related to the level of hypoxemia. Hypoxemia primarily results from the lack of oxygen intake during submersion. C) Correct- Witnessing the fall into the pool is important because immediate initiation of cardiopulmonary resuscitation (CPR) can improve the chances of a positive outcome. Bystander CPR can help maintain oxygenation and circulation until professional help arrives. D) Correct- The oxygen concentration in the surrounding air is crucial for oxygen delivery to the body's tissues. In cases of submersion, the availability of oxygen in the air the child is breathing plays a role in determining the level of hypoxemia. E) Incorrect- The weight of the child is not a significant factor in determining the level of hypoxemia during submersion. The primary determinants are factors like submersion duration, availability of oxygen, and prompt initiation of CPR.