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The nurse is using critical thinking skills during the first phase of the nursing process. Which action indicates the nurse is in the first phase?
- A. Completes a comprehensive database
- B. Identifies pertinent nursing diagnoses
- C. Intervenes based on priorities of patient care
- D. Determines whether outcomes have been achieved
Correct Answer: A
Rationale: The correct answer is A because completing a comprehensive database is part of the first phase of the nursing process, which is assessment. During assessment, the nurse gathers data about the patient's health status. This information is crucial for identifying health problems, developing nursing diagnoses, planning interventions, and evaluating outcomes.
Choice B is incorrect because identifying nursing diagnoses is part of the second phase, which is diagnosis. Choice C is incorrect as intervening based on priorities of patient care is part of the third phase, which is planning. Choice D is incorrect because determining whether outcomes have been achieved is part of the fourth phase, which is evaluation.
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The lungs regulate acid-base balance b₃y⁻ all of the following except:
- A. Excreting HCO into the blood
- B. Controlling carbon dioxide levels
- C. Slowing ventilation
- D. Increasing ventilation
Correct Answer: C
Rationale: The correct answer is C: Slowing ventilation. The lungs regulate acid-base balance by controlling carbon dioxide levels through ventilation. Increasing ventilation helps expel excess carbon dioxide, thus regulating pH. Slowing ventilation would lead to CO2 buildup and an imbalance in acid-base levels. Excreting HCO3- into the blood (choice A) helps maintain pH, while increasing ventilation (choice D) aids in removing excess CO2. Therefore, slowing ventilation is the exception as it would disrupt the acid-base balance by not effectively regulating carbon dioxide levels.
A patient is admitted to a medical unit with a diagnosis of heart failure. The patient reports that she has had increasing fatigue during the past 2 weeks. Which of the following is the most likely cause of this fatigue?
- A. Dyspnea
- B. Decreased cardiac output
- C. Dry cough
- D. Orthopnea
Correct Answer: B
Rationale: The correct answer is B: Decreased cardiac output. Fatigue in heart failure is primarily due to decreased cardiac output, leading to reduced oxygen and nutrient delivery to tissues, causing fatigue. Dyspnea (A) is shortness of breath, not fatigue. Dry cough (C) is more associated with conditions like pulmonary issues, not fatigue. Orthopnea (D) is difficulty breathing while lying down, not specifically related to fatigue. Hence, decreased cardiac output is the most likely cause of fatigue in this patient.
Several hours after returning from surgery, the nurse tells the patient that she is ordered to be ambulated. The patient asks, “Why?” Which of the following complications would the nurse correctly explain can be prevented by early postoperative ambulation?
- A. Increased peristalsis
- B. Coughing
- C. Pneumonia
- D. Wound healing A1 PASSERS TRAINING, RESEARCH, REVIEW & DEVELOPMENT COMPANY MEDICAL SURGICAL NURSING SET K
Correct Answer: C
Rationale: The correct answer is C: Pneumonia. Early postoperative ambulation helps prevent pneumonia by promoting lung expansion, increasing oxygenation, and preventing atelectasis. A: Increased peristalsis is unrelated to ambulation. B: Coughing is important for airway clearance but not directly related to ambulation. D: Wound healing is influenced by various factors, but ambulation primarily impacts respiratory function.
A client is receiving the cell cycle-nonspecific alkylating agent thiotepa (thioplex), 60 mg weekly for 4 weeks by bladder instillation as part of a chemotherapeutic regimen to treat bladder cancer. The client asks the nurse how the drug works. How does thiotepa exert its therapeutic effects?
- A. It interferes with deoxyribonucleic acid (DNA) replication only.
- B. It interferes with ribonucleic acid (RNA) transcription only.
- C. It interferes with DNA replication and RNA transcription.
- D. It destroys the cell membrane, causing lysis.
Correct Answer: C
Rationale: The correct answer is C because thiotepa is a cell cycle-nonspecific alkylating agent that interferes with both DNA replication and RNA transcription. Thiotepa works by cross-linking DNA strands, leading to inhibition of DNA replication and transcription, ultimately causing cell death. This mechanism of action makes it effective against actively dividing cells, such as cancer cells.
Choice A is incorrect because thiotepa does not interfere with DNA replication alone. Choice B is incorrect because thiotepa affects both DNA replication and RNA transcription, not just RNA transcription. Choice D is incorrect because thiotepa does not destroy the cell membrane; instead, it acts on the genetic material within the cell.
What are the signs of organ rejection a nurse should closely monitor for when caring for a client after heart transplantation? Choose all that apply
- A. Low white blood cell count
- B. Dyspnea
- C. ECG changes
- D. Fever
Correct Answer: B
Rationale: The correct answer is B: Dyspnea. Dyspnea is a common sign of organ rejection after heart transplantation, indicating possible heart failure. Low white blood cell count (A) is not typically a direct sign of organ rejection. ECG changes (C) may occur but are not specific to organ rejection. Fever (D) is a non-specific symptom and can be caused by various factors. Dyspnea is a key indicator that the transplanted heart is not functioning properly and should be closely monitored.