ATI RN
ATI Detailed Answer Key Medical Surgical
1. A nurse is teaching a client who is obese and has obstructive sleep apnea how to decrease the number of nightly apneic episodes. Which of the following client statements indicates an understanding of the teaching?
- A. "It might help if I tried sleeping only on my back."
- B. "I'll sleep better if I take a sleeping pill at night."
- C. "I'll get a humidifier to run at my bedside at night."
- D. "If I could lose about 50 pounds, I might stop having so many apneic episodes."
Correct answer: D
Rationale:
2. A healthcare professional is assessing a client who has a fracture of the femur. Vital signs are obtained on admission and again in 2 hours. Which of the following changes in assessment should indicate to the healthcare professional that the client could be developing a serious complication?
- A. Increased respiratory rate from 18 to 44/min
- B. Increased oral temperature from 36.6� C (97.8� F) to 37� C (98.6� F)
- C. Increased blood pressure from 112/68 to 120/72 mm Hg
- D. Increased heart rate from 68 to 72/min
Correct answer: A
Rationale: An increased respiratory rate from 18 to 44/min is a significant change that should alert the healthcare professional to a potential serious complication. Such a drastic increase in respiratory rate may indicate respiratory distress or hypoxia, which are critical conditions requiring immediate attention. The other options show minor changes in vital signs that are within normal limits and are less likely to indicate a serious complication.
3. While caring for a client receiving positive-pressure mechanical ventilation, which intervention should the nurse NOT implement to prevent complications?
- A. Elevate the head of the bed to at least 30�.
- B. Verify the prescribed ventilator settings daily.
- C. Administer pantoprazole as prescribed.
- D. Reposition the endotracheal tube to the opposite side of the mouth daily.
Correct answer: D
Rationale: Repositioning the endotracheal tube to the opposite side of the mouth daily is not a standard practice and can increase the risk of complications, such as accidental extubation or damage to the airway. The endotracheal tube should remain in the initial correct position to ensure proper ventilation and prevent harm to the client. Elevating the head of the bed, verifying ventilator settings, and administering pantoprazole as prescribed are all appropriate interventions to prevent complications in a client receiving positive-pressure mechanical ventilation.
4. A client's arterial blood gas results show a pH of 7.3 and a PaCO2 of 50 mm Hg. The client is experiencing which of the following acid-base imbalances?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: C
Rationale: In respiratory acidosis, there is an excess of carbon dioxide (PaCO2 > 45 mm Hg) leading to a decrease in pH (<7.35). The given values of a pH of 7.3 and PaCO2 of 50 mm Hg indicate respiratory acidosis. Metabolic acidosis involves a primary decrease in bicarbonate levels with a compensatory decrease in PaCO2 to maintain balance. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory alkalosis is marked by low PaCO2 and increased pH levels.
5. A client is scheduled to have a tracheostomy placed in an hour. What action by the nurse is the priority?
- A. Administer prescribed anxiolytic medication.
- B. Ensure informed consent is on the chart.
- C. Reinforce any teaching done previously.
- D. Start the preoperative antibiotic infusion.
Correct answer: B
Rationale: The priority action for the nurse is to ensure that informed consent is on the chart. Before any surgical procedure, it is essential to have the client's informed consent documented. While administering anxiolytics, starting antibiotic infusion, and reinforcing teaching may also be necessary, obtaining informed consent takes precedence to ensure the client's understanding and agreement to proceed with the tracheostomy.
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