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 C
Explanation
c) Assessing pain management response.
This is the correct answer because it is the most important and relevant action that the PN should do for a postoperative patient with a PCA machine. A PCA machine is a computerized device that allows the patient to self-administer a preset dose of pain medication, usually an opioid, by pressing a buton. The PCA machine is atached to an intravenous (IV) line that delivers the medication directly into the bloodstream. The PCA machine can provide effective and individualized pain relief for postoperative patients, as well as increase their sense of control and satisfaction¹².
The PN should assess the pain management response of the postoperative patient with a PCA machine by monitoring their pain level, vital signs, oxygen saturation, sedation level, and side effects. The PN should use a valid and reliable pain scale, such as the numeric rating scale (NRS) or the visual analog scale (VAS), to measure the patient's pain intensity and relief. The PN should also check the settings and functioning of the PCA machine, such as the dose, lockout interval, and limit. The PN should document and report the patient's pain management response and any problems or complications with the PCA machine to the health care provider.
a) Coffee ground secretions drainage via nasogastric tube.
This is not the correct answer because it is not a priority action that the PN should do for a postoperative patient with a PCA machine. Coffee ground secretions are dark brown or black granular material that are drained from the stomach via a nasogastric tube. They indicate bleeding in the upper gastrointestinal tract, such as from an ulcer, gastritis, or esophageal varices. Coffee ground secretions are a serious sign that require immediate atention and treatment³. However, they are not directly related to the use of a PCA machine or postoperative pain management. The PN should monitor the nasogastric tube drainage of the postoperative patient and report any coffee ground secretions to the health care provider, but this is not a priority action for a patient with a PCA machine.
b) Nasogastric tube suctioning.
This is not the correct answer because it is not a priority action that the PN should do for a postoperative patient with a PCA machine. Nasogastric tube suctioning is a procedure that involves applying negative pressure to a nasogastric tube to remove gastric contents from the stomach. It can be used to decompress the stomach, prevent vomiting or aspiration, or treat gastrointestinal bleeding or obstruction⁴. However, it is not directly related to the use of a PCA machine or postoperative pain management. The PN should perform nasogastric tube suctioning as ordered by the health care provider and according to protocol, but this is not a priority action for a patient with a PCA machine.
d) Ineffective pain management report.
This is not the correct answer because it is not an action that the PN should do for a postoperative patient with a PCA machine. Ineffective pain management report is an outcome or evaluation that indicates that the patient's pain is not adequately controlled or relieved by the current treatment plan. It may be caused by various factors, such as inadequate dosing, inappropriate medication choice, poor adherence, tolerance, or side effects⁵. However, it is not an action that the PN can implement or perform for a postoperative patient with a PCA machine. The PN should assess and document the patient's pain management response and report any ineffective pain management to the health care provider, but this is not an action for a patient with a PCA machine.
Correct Answer is D
Explanation
The correct answer is: D. Blood pressure 90/76 mm Hg.
Clonidine is an alpha-2 adrenergic agonist used to manage withdrawal symptoms, but it lowers blood pressure as a side effect. If the client's blood pressure is already low (90/76 mm Hg), administering clonidine could lead to hypotension, putting them at risk for dizziness, fainting, or more severe complications.
Here's why the other options are not contraindications:
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A. Hypertension: Clonidine is actually used to treat high blood pressure, so it wouldn’t be a contraindication.
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B. Apical heart rate 72 beats/minute: This heart rate is within normal limits, so it wouldn’t prevent administration.
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C. Muscle weakness: While clonidine can cause fatigue, muscle weakness is not a direct contraindication.
Since the client is experiencing withdrawal symptoms like nervousness and unusual sensations ("bones itching"), monitoring vital signs is critical before giving the medication.
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