ATI RN
ATI Detailed Answer Key Medical Surgical
1. The healthcare provider is caring for a postoperative client who has a chest tube connected to suction and a water seal drainage system. Which of the following indicates to the healthcare provider that the chest tube is functioning properly?
- A. Fluctuation of the fluid level within the water seal chamber
- B. Absence of fluid in the drainage tubing
- C. Continuous bubbling within the water seal chamber
- D. Equal amounts of fluid drainage in each collection chamber
Correct answer: A
Rationale: Fluctuation of the fluid level within the water seal chamber indicates proper functioning of the chest tube. This fluctuation reflects the normal ebb and flow of air and fluid in the pleural space, demonstrating that the system is maintaining the appropriate pressure. Continuous bubbling in the water seal chamber may indicate an air leak, absence of fluid in the drainage tubing suggests a blockage, and equal amounts of fluid drainage in each collection chamber are not expected in this system.
2. A post-anesthesia care unit nurse is caring for a client who is postoperative following a thoracotomy and lobectomy. Which of the following postoperative assessments should the nurse give the highest priority to?
- A. Arterial blood gases
- B. Urinary output
- C. Chest tube drainage
- D. Pain level
Correct answer: A
Rationale: Arterial blood gases are crucial to assess postoperatively in a client who has undergone thoracotomy and lobectomy to monitor oxygenation and ventilation status. Changes in arterial blood gases can indicate respiratory complications or inadequate gas exchange, which are critical issues that need prompt intervention to prevent further complications. While urinary output, chest tube drainage, and pain level are important assessments, monitoring arterial blood gases takes precedence in this specific postoperative scenario to ensure optimal respiratory function and overall patient well-being.
3. When teaching a group of clients about emergency care for a snake bite, which of the following information should the nurse include?
- A. Raise the affected extremity above the level of the heart.
- B. Immobilize the affected extremity with a splint
- C. Apply ice to the bite area
- D. Apply a tourniquet to the affected extremity.
Correct answer: B
Rationale: In cases of snake bites, it is essential to immobilize the affected extremity with a splint to prevent the spread of venom throughout the body. Raising the extremity above the heart level can promote venom spread, and applying ice or a tourniquet can worsen the condition. Immobilization helps reduce movement and slows the circulation of venom, aiding in the prevention of further complications.
4. A client with tuberculosis (TB) is taking isoniazid (INH). Which instruction is most important for the nurse to include?
- A. Take the medication with food to avoid stomach upset.
- B. Avoid exposure to sunlight while taking this medication.
- C. Report any numbness or tingling in extremities.
- D. Have liver function tests done regularly.
Correct answer: D
Rationale: Regular monitoring of liver function tests is crucial for clients taking isoniazid (INH) due to the potential risk of hepatotoxicity. Isoniazid can cause liver damage, and early detection through routine liver function tests can help prevent severe complications.
5. A client is postoperative with shallow respirations at 9/min. Which acid-base imbalance should the nurse identify the client as being at risk for developing initially?
- A. Respiratory acidosis
- B. Respiratory alkalosis
- C. Metabolic acidosis
- D. Metabolic alkalosis
Correct answer: A
Rationale: The client's shallow respirations at 9/min indicate hypoventilation, leading to an accumulation of carbon dioxide in the blood, causing respiratory acidosis. In this scenario, the client is at risk for developing respiratory acidosis due to inadequate ventilation and subsequent CO2 retention.
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