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 C
Explanation
A) Incorrect- reapplying a sterile non-adhesive dressing is not enough to address the infection.
The nurse should also clean the wound, apply topical antimicrobial agents, and change the dressing regularly.
B) Incorrect- limiting visitors to immediate family only is not a sufficient infection control measure. The nurse should also use standard precautions, such as wearing gloves, gowns, masks,
and eye protection, and educate the visitors about hand hygiene and proper disposal of contaminated items.
C) Correct- Administering prescribed antibiotics is the most important action because it can help treat the infection and prevent it from spreading to other parts of the body or to other people. MRSA is resistant to many common antibiotics, so it is essential to follow the prescription and monitor the client's response.
D) Incorrect- requesting a nutrition consult is not a priority action. While nutrition is important for wound healing, it does not directly affect the infection. The nurse should first administer antibiotics and then assess the client's nutritional status and needs.
Correct Answer is C
Explanation
A) Incorrect- Pupillary response is not relevant to the assessment of mesalamine's effectiveness.
Pupillary response is often assessed in neurological or ophthalmic evaluations and is not a direct measure of gastrointestinal function or the response to mesalamine therapy.
B) Incorrect- Peripheral pulses are not directly affected by mesalamine therapy, and monitoring them would not provide insight into the medication's effectiveness. Peripheral pulses are typically assessed to evaluate circulatory status and are not specific to the evaluation of gastrointestinal conditions.
C) Correct- Mesalamine is a medication commonly used to treat inflammatory bowel disease (IBD), such as Crohn's disease and ulcerative colitis. It helps to reduce inflammation in the gastrointestinal tract. Monitoring bowel patterns is important to assess the effectiveness of mesalamine in managing the symptoms of these conditions.
D) Incorrect- Oxygen saturation is a measure of the amount of oxygen in the blood and is used to assess respiratory function. While oxygen saturation is important for overall patient assessment, it is not directly related to mesalamine's effectiveness in treating inflammatory bowel disease.
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