ATI RN
ATI Capstone Adult Medical Surgical Assessment 1
1. A nurse is planning care for a group of postoperative clients. Which of the following interventions should the nurse identify as the priority?
- A. Administer IV pain medication to a client who reports pain as a 6 on a scale of 0 to 10
- B. Administer oxygen to a client who has an oxygen saturation of 91%
- C. Instruct a client who is 1 hr postoperative about coughing and deep breathing exercises
- D. Initiate an infusion of 0.9% sodium chloride for a client who has just had abdominal surgery
Correct answer: B
Rationale: The priority intervention is administering oxygen. Postoperatively, the client's oxygen saturation should be at or above 95%. Oxygen is essential for tissue perfusion and cellular oxygenation. While managing pain is important, oxygenation takes precedence. Instructing a client about coughing and deep breathing exercises is important for preventing respiratory complications but is not as urgent as addressing low oxygen saturation. Initiating an infusion of 0.9% sodium chloride is a routine postoperative intervention for fluid balance but is not the priority when oxygen saturation is low.
2. Which negative ion is most abundant in blood plasma?
- A. Bicarbonate
- B. Chloride
- C. Hydroxide
- D. Phosphate
Correct answer: B
Rationale: Chloride (Cl-) is the most abundant anion in blood plasma. It plays a crucial role in maintaining osmotic balance and acid-base homeostasis. Bicarbonate (Choice A) is important for buffering acids in the body but is not the most abundant negative ion in blood plasma. Hydroxide (Choice C) is not typically found in high concentrations in blood plasma. Phosphate (Choice D) is an important anion in the body but is not as abundant as chloride in blood plasma.
3. Which ECG change is associated with hyperkalemia?
- A. Flattened T waves
- B. Prominent U waves
- C. Elevated ST segments
- D. Widened QRS complex
Correct answer: A
Rationale: Flattened T waves are a characteristic ECG change seen in hyperkalemia. Hyperkalemia affects the repolarization phase of the cardiac cycle, leading to T wave abnormalities. Prominent U waves are typically seen in hypokalemia. Elevated ST segments are more indicative of myocardial infarction or pericarditis. Widened QRS complexes are commonly associated with conditions like bundle branch blocks or certain toxicities.
4. The nurse is caring for a patient post coronary artery bypass graft who rates his/her pain as an 8 out of 10 on the subjective pain scale. Should the nurse choose to administer morphine sulfate intravenously as it has benefits to cardiac patients (select one that does not apply)?
- A. Decreasing myocardial oxygen supply
- B. Decreasing myocardial oxygen consumption
- C. Decreasing heart rate
- D. Increasing blood pressure
Correct answer: Increasing blood pressure
Rationale: Morphine sulfate, a potent opioid analgesic, can cause vasodilation leading to a decrease in blood pressure rather than an increase. Choice A is incorrect as morphine can decrease myocardial oxygen consumption by reducing the workload of the heart. Choice B is incorrect as morphine can decrease heart rate as a side effect. Choice C is incorrect as morphine typically decreases blood pressure rather than increasing it.
5. The complexities of the current health care delivery systems require a variety of leadership styles. Which of the following leadership styles would be most effective in this environment?
- A. Autocratic leadership
- B. Laissez-faire leadership
- C. Transactional leadership
- D. Transformational leadership
Correct answer: D
Rationale: In complex health care environments, transformational leadership is the most effective style. This leadership approach focuses on inspiring and motivating staff towards a shared vision. Autocratic leadership (choice A) is too controlling and may not foster innovation and adaptability needed in complex systems. Laissez-faire leadership (choice B) lacks guidance and may lead to confusion in intricate healthcare settings. Transactional leadership (choice C) focuses on tasks and rewards, but may not be as effective in promoting innovation and change management required in complex health care delivery systems.
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