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 B
Explanation
The correct answer is B. "You seem quite frightened right now."
Choice A rationale:
This statement dismisses the client's feelings and may not provide the reassurance they need. It could also escalate the situation if the client feels misunderstood or ignored.
Choice B rationale:
This response acknowledges the client's emotions and validates their experience, which can help build trust and de-escalate the situation. It shows empathy and understanding, which are crucial in managing delusions.
Choice C rationale:
While this statement aims to reassure the client, it may not address their immediate emotional state. The client might not feel safe despite being told they are, so it might not be as effective in calming them down.
Choice D rationale:
This response could inadvertently reinforce the client's delusions by implying that their fears are valid and that the nurse should take action based on those delusions. It might also confuse the client further.
Correct Answer is C
Explanation
The correct answer is: C. Bronchospasm.
Metoprolol is a selective beta-1 blocker, primarily affecting the heart, but it can still have some impact on beta-2 receptors in the lungs. In clients with respiratory conditions like asthma or COPD, beta-blockers can trigger bronchospasm, leading to breathing difficulties.
Here's why the other options are less likely to be adverse effects of metoprolol:
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A. Tachycardia: Metoprolol actually lowers heart rate, so tachycardia is not a typical adverse effect. Instead, bradycardia (slow heart rate) is more common.
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B. Hyperglycemia: Beta-blockers can sometimes mask symptoms of hypoglycemia, but they don’t directly cause high blood sugar.
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D. Hyperkalemia: Metoprolol doesn’t significantly affect potassium levels, so hyperkalemia is not a common concern.
Since metoprolol is frequently used in hypertension management, nurses must monitor clients for bradycardia, hypotension, and signs of bronchospasm, especially in individuals with respiratory disorders.
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