The child is a 2-year-old who fell into a pool. He was retrieved from the pool by a family member but was not breathing. The family member started CPR, and the ambulance brought him to the hospital.
What factors are important in determining the level of hypoxemia that the child may have experienced during the submersion?
Select all that apply.
Temperature of water
The weight of the child
Oxygen concentration of the ambient air
Whether or not anyone witnessed the fall into the pool
The amount of time the child was submerged
Correct Answer : A,E
The level of hypoxemia that the child may have experienced during the submersion depends on several factors, but the most important ones are:
- The **temperature of water**: Cold water can induce a diving reflex, which lowers the heart rate and oxygen consumption, and may protect the brain from hypoxic injury¹². Cold water can also cause laryngospasm, which prevents water aspiration but also impairs gas exchange.
- The **amount of time the child was submerged**: The longer the submersion, the more severe the hypoxemia and the higher the risk of brain damage and death. The survival rate decreases significantly after 5 minutes of submersion³.
The other factors are less relevant or not directly related to the level of hypoxemia:
- The **weight of the child**: This may affect the buoyancy and the ability to float or swim, but not the oxygen consumption or gas exchange during submersion¹.
- The **oxygen concentration of the ambient air**: This may affect the pre-submersion oxygen saturation, but not the rate of oxygen depletion or gas exchange during submersion¹.
- The **witnessing of the fall into the pool**: This may affect the time to rescue and resuscitation, but not the level of hypoxemia during submersion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This statement indicates that the client has reached a level of acceptance of his prognosis, as he expresses a sense of peace, gratitude, and hope. He has found sources of strength and comfort from his faith and family, and he does not show signs of denial, anger, bargaining, or depression.
The other options are not correct because:
B . This statement indicates that the client is in the stage of rationalization, as he tries to justify or minimize his condition by stating a fact that does not address his feelings or needs.
C. This statement indicates that the client is in the stage of anger, as he shows resentment and hostility towards those who challenge his optimism or reality.
D. This statement indicates that the client is in the stage of blame, as he implies that his condition could have been prevented or treated if the doctor had diagnosed it earlier.
Correct Answer is A
Explanation
A) Correct - Flaring of the nares is a sign of increased respiratory effort and can indicate acute respiratory distress.
B) Incorrect - While a resting respiratory rate of 35 breaths/min is elevated for a 4-month-old infant, it may not necessarily indicate acute distress, especially when considered along with other signs.
C) Incorrect - Bilateral bronchial breath sounds may indicate lung pathology, but they are not specific to acute respiratory distress.
D) Incorrect - Diaphragmatic respirations, where the abdomen moves more than the chest during breathing, are normal for infants. They do not necessarily indicate acute respiratory distress.
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