Nokea
Continuous venovenous hemofiltration is used to
- A. remove fluids and solutes through the process of convection.
- B. remove plasma water in cases of volume overload.
- C. remove plasma water and solutes by adding dialysate.
- D. combine ultrafiltration, convection, and dialysis.
Correct Answer: A
Rationale: The correct answer is A because continuous venovenous hemofiltration (CVVH) primarily removes fluids and solutes through the process of convection. In CVVH, blood flows through a filter where hydrostatic pressure drives plasma water and solutes across a semipermeable membrane. This process mimics the natural filtration that occurs in the kidneys. Choice B is incorrect because CVVH does not specifically target plasma water only but also removes solutes. Choice C is incorrect because CVVH does not involve adding dialysate to remove plasma water and solutes. Choice D is incorrect because while CVVH may involve ultrafiltration and convection, it does not typically include dialysis as a primary mechanism for solute removal.
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An Ethiopian man with AIDS has recently been admitted to the ICU with a case of pneumonia. The man is new to the U.S. and has no health insurance. He would likely be eligible for the states Medicaid coverage, but does not understand how to access this coverage. Which competency or competencies are most needed in this situation? Select all that apply.
- A. Clinical judgment
- B. Advocacy and moral agency
- C. Collaboration
- D. Systems thinking
Correct Answer: B
Rationale: The correct answer is B: Advocacy and moral agency. In this scenario, the Ethiopian man with AIDS is in a vulnerable position due to lack of health insurance and understanding of Medicaid coverage. Advocacy skills are crucial to help him navigate the complex healthcare system and access the necessary resources. Moral agency involves advocating for the patient's rights and well-being, ensuring that he receives appropriate care despite his socioeconomic status. Clinical judgment, collaboration, and systems thinking are important competencies but not as directly relevant in this specific situation of advocating for the patient's access to Medicaid coverage.
The nurse notes premature ventricular contractions (PVCs) while suctioning a patient’s endotracheal tube. Which action by the nurse is a priority?
- A. Decrease the suction pressure to 80 mm Hg.
- B. Document the dysrhythmia in the patient’s chart.
- C. Stop and ventilate the patient with 100% oxygen.
- D. Give antidysrhythmic medications per protocol.
Correct Answer: C
Rationale: The correct answer is C: Stop and ventilate the patient with 100% oxygen. This is the priority action because PVCs can lead to life-threatening arrhythmias and inadequate oxygenation. By stopping suctioning and providing 100% oxygen, the nurse ensures proper oxygenation and ventilation, which takes precedence over addressing the dysrhythmia itself. Decreasing suction pressure (choice A) may not address the underlying issue and could potentially harm the patient. Documenting the dysrhythmia (choice B) is important but not as urgent as ensuring adequate oxygenation. Giving antidysrhythmic medications (choice D) should be done under the direction of a healthcare provider and is not the first-line intervention in this situation.
Which intervention should the nurse include in the plan of care for a female client with severe postpartum depression who is admitted to the inpatient psychiatric unit?
- A. Restrict visitors who irritate the client.
- B. Full rooming-in for the infant and mother.
- C. Supervised and guided visits with infant.
- D. Daily visits with her significant other.
Correct Answer: C
Rationale: The correct answer is C because supervised and guided visits with the infant allow the client to bond with her baby in a safe and structured environment, promoting maternal-infant attachment while ensuring the safety and well-being of both. Restricting visitors who irritate the client (choice A) may increase feelings of isolation and distress. Full rooming-in for the infant and mother (choice B) may overwhelm the client with severe postpartum depression. Daily visits with her significant other (choice D) may not directly address the client's need for bonding with her infant.
The nurse is caring for a patient with acute kidney injury who is being treated with hemodialysis. The patient asks if he will need dialysis for the rest of his life. Which of the following would be the best response?
- A. “Unfortunately, kidney injury is not reversible; it is permanent.”
- B. “Kidney function usually returns within 2 weeks.”
- C. “You will know for sure if you start urinating a lot all at once.”
- D. “Recovery is possible, but it may take several months.”
Correct Answer: D
Rationale: The correct answer is D: “Recovery is possible, but it may take several months.” This response is the best choice as it provides a balanced and accurate explanation to the patient. Here's the rationale:
1. Hemodialysis is often used as a temporary measure to support kidney function while allowing time for the kidneys to recover.
2. Acute kidney injury can be reversible in some cases, especially if the underlying cause is identified and treated promptly.
3. Recovery time varies for each individual, and it can indeed take several months for kidney function to improve.
4. Choices A, B, and C are incorrect:
- A is overly pessimistic and does not consider the potential for recovery.
- B provides a specific timeframe that may not be accurate for all patients.
- C is not a reliable indicator of kidney function recovery and may lead to confusion.
The critical care nurse knows that in critically ill patients, renal dysfunction
- A. is a very rare problem.
- B. affects nearly two thirds of patients.
- C. has a low mortality rate once renal replacement therapy has been initiated.
- D. has little effect on morbidity, mortality, or quality of life.
Correct Answer: B
Rationale: The correct answer is B. Renal dysfunction is common in critically ill patients due to various factors like sepsis, hypotension, and nephrotoxic medications. This affects nearly two thirds of patients, making it a significant issue in critical care. Choices A, C, and D are incorrect. A is wrong because renal dysfunction is not rare in critically ill patients. C is incorrect as renal replacement therapy does not guarantee low mortality rates. D is inaccurate as renal dysfunction can have a significant impact on morbidity, mortality, and quality of life in critically ill patients.