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The patient is admitted with complaints of general malaise and fatigue, along with a decreased urinary output. The patient’s urinalysis shows coarse, muddy brown granular casts and hematuria. The nurse determines that the patient has:
- A. acute kidney injury from a prerenal condition.
- B. acute kidney injury from postrenal obstruction.
- C. intrarenal disease, probably acute tubular necrosis.
- D. a urinary tract infection.
Correct Answer: C
Rationale: The correct answer is C: intrarenal disease, probably acute tubular necrosis. The patient's symptoms of general malaise, fatigue, decreased urinary output, along with the presence of coarse, muddy brown granular casts and hematuria in the urinalysis indicate kidney damage. Acute tubular necrosis is a common cause of acute kidney injury characterized by damage to the renal tubules, leading to impaired kidney function. The presence of granular casts and hematuria suggests tubular injury and bleeding within the kidney. Choices A and B are incorrect as they refer to prerenal and postrenal causes of kidney injury, respectively, which do not align with the patient's symptoms and urinalysis findings. Choice D is incorrect as a urinary tract infection would typically present with different symptoms and urinalysis findings.
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Intrapulmonary shunting refers to what outcome?
- A. Alveoli that are not perfused.
- B. Blood that is shunted from the left side of the heart to t he right and causes heart failure.
- C. Blood that is shunted from the right side of the heart to the left without oxygenation.
- D. Shunting of blood supply to only one lung.
Correct Answer: C
Rationale: Step-by-step rationale for why choice C is correct:
1. Intrapulmonary shunting refers to blood bypassing the normal oxygenation process in the lungs.
2. Choice C describes blood being shunted from the right side of the heart (deoxygenated blood) to the left side without oxygenation, leading to systemic circulation without oxygenation.
3. Choices A, B, and D do not accurately describe intrapulmonary shunting as they focus on other concepts like alveolar perfusion, heart failure, and unilateral lung blood supply, respectively.
The nurse wishes to increase the use of evidence-based practice in the critical care unit where he works. What is a significant barrier to the implementation of evidence-based practice?
- A. Use of computerized records by the hospital
- B. Health Information Privacy and Portability Act (HIPPA)
- C. Lack of knowledge about literature searches
- D. Strong collaborative relationships in the work setting
Correct Answer: C
Rationale: Rationale:
The correct answer is C because lack of knowledge about literature searches hinders the ability to find and utilize evidence-based practice guidelines. Nurses need to be skilled in conducting literature searches to access relevant research. Choices A, B, and D are incorrect as they do not directly impede the implementation of evidence-based practice in the critical care unit.
The nurse is caring for a patient whose ventilator settings i nclude 15 cm H O of positive end-expiratory pressure (PEEP). The nurse understands that although beneficial, PEEP may result in what possible problem?
- A. Fluid overload secondary to decreased venous return.
- B. High cardiac index secondary to more efficient ventric ular function.
- C. Hypoxemia secondary to prolonged positive pressure a t expiration.
- D. Low cardiac output secondary to increased intrathoracic pressure
Correct Answer: D
Rationale: Rationale for Correct Answer (D - Low cardiac output secondary to increased intrathoracic pressure):
1. PEEP increases intrathoracic pressure, which can impede venous return to the heart.
2. Impaired venous return reduces preload, leading to decreased cardiac output.
3. Decreased cardiac output can result in inadequate tissue perfusion and oxygenation.
4. Therefore, PEEP may cause low cardiac output due to increased intrathoracic pressure.
Summary of Incorrect Choices:
A. Fluid overload is not directly related to PEEP but more to fluid administration or kidney function.
B. High cardiac index is unlikely as PEEP can decrease cardiac output.
C. Hypoxemia is not a direct result of PEEP but may occur due to other factors like inadequate ventilation or oxygenation settings.
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.
A patient is experiencing severe pain, despite receiving pain medication for the past 24 hours. The patients wife expresses concern about this to the nurse. Which response by the nurse would be most empowering to the patients family?
- A. Explain that the doctor is an expert on pain medication and that the current level ofm edication is the best.
- B. Recommend that the family members take turns massaging the patients feet todistract from the pain.
- C. Encourage the family to request that the physician evaluate the patients pain control.
- D. Ask the family to wait another 24 hours to see whether the patients pain level will go down.
Correct Answer: C
Rationale: The correct answer is C because it empowers the family to take action by requesting a physician evaluation of the patient's pain control. This step is crucial in ensuring that the patient's pain is adequately managed. By involving the physician, the family can advocate for the patient's needs and potentially explore alternative pain management strategies.
Choice A is incorrect because it dismisses the family's concerns and fails to address the need for further evaluation. Choice B may provide temporary relief but does not address the underlying issue of inadequate pain control. Choice D is incorrect as it suggests delaying action, which could lead to prolonged suffering for the patient.