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What is an early signs of the effect of hypoxemia on the nervous system?
- A. Cyanosis
- B. Restlessness
- C. Tachycardia
- D. Tachypnea
Correct Answer: B
Rationale: The correct answer is B: Restlessness. When the body experiences hypoxemia (low oxygen levels), the brain is deprived of oxygen, leading to early signs such as restlessness. This is due to the brain's attempt to increase oxygen intake by increasing activity. Cyanosis (A) is a late sign of hypoxemia when oxygen levels are critically low. Tachycardia (C) and tachypnea (D) are compensatory mechanisms in response to hypoxemia, but they are not early signs affecting the nervous system directly.
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The constant noise of a ventilator, monitor alarms, and inf usion pumps predisposes the patient to what form of stress?
- A. Anxiety
- B. Pain
- C. Powerlessness
- D. Sensory overload
Correct Answer: D
Rationale: The correct answer is D: Sensory overload. Constant noise from medical equipment can overwhelm the patient's senses, leading to sensory overload. This can result in increased stress levels, difficulty concentrating, and overall discomfort. Anxiety (A) is related to worry and fear, but in this context, the primary stressor is sensory overload, not anxiety. Pain (B) is a physical sensation, not directly related to the sensory overload caused by noise. Powerlessness (C) refers to a lack of control or influence, which is not the primary form of stress induced by constant noise. Therefore, the correct choice is D as it directly correlates with the impact of the noise on the patient's sensory perception.
What should a designated healthcare surrogate base healthcare decisions on?
- A. Personal beliefs and values
- B. Recommendations of family members and friends
- C. Recommendations of the physician and healthcare team
- D. Wishes previously expressed by the patient
Correct Answer: C
Rationale: The correct answer is C because the healthcare surrogate should base decisions on recommendations of the physician and healthcare team who have the expertise to provide medical advice. They are best positioned to understand the patient's condition and treatment options. Personal beliefs (A) may not align with medical best practices. Family and friends' recommendations (B) may not be informed by medical knowledge. Wishes previously expressed by the patient (D) are important but may need to be interpreted in the context of the current medical situation, which healthcare professionals can provide.
The patient’s potassium level is 7.0 mEq/L. Besides dialysis, which of the following actually reduces plasma potassium levels and total body potassium content safely in a patient with renal dysfunction?
- A. Sodium polystyrene sulfonate
- B. Sodium polystyrene sulfonate with sorbitol
- C. Regular insulin
- D. Calcium gluconate
Correct Answer: C
Rationale: Correct Answer: C - Regular insulin
Rationale:
1. Insulin promotes cellular uptake of potassium.
2. When insulin is administered, it moves potassium from extracellular to intracellular space.
3. This decreases plasma potassium levels safely.
4. Other options do not directly lower potassium levels in the same manner.
Summary of Other Choices:
A: Sodium polystyrene sulfonate - exchanges sodium for potassium in the intestines, not reducing total body potassium.
B: Sodium polystyrene sulfonate with sorbitol - similar to A, does not reduce total body potassium.
D: Calcium gluconate - does not directly lower potassium levels, used for treating hyperkalemia-induced cardiac toxicity.
While caring for a critically ill patient, the nurse knows that fostering patient control over the environment is a method for stress reduction. What nursing intervention gives the patient the most environmental control while still adhering to best practice principles?
- A. Ask the patient whether he or she wants to get out of bed.
- B. Give the patients bath at the same time every day.
- C. Explain painful procedures only after giving pain medication.
- D. Choose menu items for the patient to ensure a balanced diet.
Correct Answer: A
Rationale: Step 1: Asking the patient whether he or she wants to get out of bed allows the patient to make a decision regarding their immediate environment, promoting autonomy and control.
Step 2: This intervention respects the patient's preferences and fosters a sense of dignity and empowerment, reducing stress.
Step 3: Best practice principles in nursing emphasize patient-centered care and promoting patient autonomy.
Summary:
Choice A is correct as it directly involves the patient in decision-making, enhancing their sense of control. Choices B, C, and D do not provide the same level of autonomy and control to the patient, making them less effective in reducing stress and promoting patient well-being.
The nurse manager recognizes which action as an effectiveab sirtbr.acotmeg/teys tf or promoting changes in practice?
- A. Asking the clinical nurse specialist to lead a journal clu b on open visitation after each nurse is tasked to read one research article about visitation.
- B. Discussing pros and cons of open visitation at the next staff meeting.
- C. Inviting the nurses with the most experience to develop a revised policy.
- D. Tasking the unit-based nurse practice council to invite volunteers to serve on the council to revise the current policy toward more liberaal bviribs.ciotamt/iteosnt .
Correct Answer: A
Rationale: The correct answer is A because it involves a structured approach to promoting changes in practice. By asking the clinical nurse specialist to lead a journal club on open visitation after each nurse reads a research article, it ensures that all nurses are informed and engaged in the topic. This approach promotes evidence-based practice and encourages active participation.
Option B is less effective as discussing pros and cons at a staff meeting may not ensure that all nurses have the necessary knowledge to make informed decisions. Option C may not consider diverse perspectives and may not involve all staff members equally. Option D involves a select group of volunteers and may not reflect the views of the entire team. Overall, option A is the most inclusive and educational approach to promoting changes in practice.