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 injury. 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 submersion.
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 submersion.
- 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 submersion.
- 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 D
Explanation
Choice A rationale:
Tetracycline antibiotics can form insoluble complexes with calcium, reducing their absorption when taken together. Therefore, advising the client to continue taking calcium supplements with food while on tetracycline therapy is not recommended as it may decrease the effectiveness of the antibiotic.
Choice B rationale:
The nurse should advise the client to avoid taking calcium supplements while on tetracycline therapy. Calcium-containing products (such as supplements, dairy products, and antacids) should be taken at least 2 hours before or after tetracycline administration to minimize the interference with drug absorption.
Choice C rationale:
Taking calcium supplements with tetracycline, even with plenty of water, can still lead to reduced drug absorption due to the formation of insoluble complexes. Therefore, this advice is not appropriate.
Choice D rationale:
The nurse should recommend that the client take calcium supplements at least 2 hours before or after tetracycline. This approach ensures that the client receives the full therapeutic benefit of the antibiotic while still meeting their calcium needs separately.
Correct Answer is B
Explanation
Choice A rationale:
Assessment of tobacco use geared toward adolescents. Rationale: While assessing tobacco use is essential for promoting health in adolescents, the question is about developing a class about mental health and addressing the increase in suicides in the community. Assessing tobacco use is not directly related to this topic. Stress self-management techniques are more relevant.
Choice B rationale:
Exploration of stress self-management techniques. Rationale: This is the correct answer. Addressing stress and teaching adolescents self-management techniques is crucial in the context of mental health promotion and suicide prevention. Adolescents often face stressors, and providing them with effective strategies to manage stress can contribute to their overall well-being.
Choice C rationale:
Video with statistics showing trends in suicide rates. Rationale: While providing statistics about suicide rates can be informative, it may not be the most engaging or effective method for teaching adolescents about mental health and stress management. Interactive activities and skill-building exercises are often more beneficial.
Choice D rationale:
Handouts for local substance abuse treatment centers. Rationale: Providing handouts for substance abuse treatment centers
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