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. Prior to performing percussion, vibration, and postural drainage on an adolescent client with pneumonia, which of the following nursing actions should the nurse complete first?
- A. Auscultate lung fields
- B. Assess pulse and respirations
- C. Assess characteristics of the sputum
- D. Instruct the client to slowly exhale with pursed lips
Correct answer: A
Rationale: Before initiating percussion, vibration, and postural drainage, the nurse should first auscultate the lung fields to assess the baseline lung sounds and identify areas of congestion or abnormality. This initial assessment helps the nurse to tailor the percussion and drainage techniques effectively. Assessing pulse and respirations, sputum characteristics, and providing instructions to the client for exhalation are important steps in the procedure but should follow the initial auscultation to ensure a comprehensive and individualized care approach.
3. A client is wearing a Venturi mask to receive oxygen, and the dinner tray has arrived. What action by the nurse is best?
- A. Assess the client's oxygen saturation and, if normal, turn off the oxygen.
- B. Determine if the client can switch to a nasal cannula during the meal.
- C. Have the client lift the mask off the face when taking bites of food.
- D. Turn off the oxygen while the client eats the meal and then restart it.
Correct answer: B
Rationale: In this scenario, the nurse should determine if the client can safely switch to a nasal cannula during meals. It is crucial to ensure that the provider has approved this change. Oxygen is considered a medication and should be delivered continuously. Turning off the oxygen or lifting the mask while eating can lead to a decrease in the FiO2 delivered, potentially compromising the client's oxygenation status. Therefore, the best course of action is to ascertain if transitioning to a nasal cannula is appropriate for the client during the meal.
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 has an oxygen saturation of 88% on room air. Which action should the nurse take first?
- A. Initiate oxygen therapy at 2 liters per minute via nasal cannula.
- B. Place the client in a high-Fowler's position.
- C. Notify the healthcare provider.
- D. Document the finding in the client's medical record.
Correct answer: A
Rationale: The priority action for a client with an oxygen saturation of 88% on room air is to initiate oxygen therapy to improve oxygen saturation levels. Oxygen therapy is crucial to address hypoxemia promptly. Placing the client in a high-Fowler's position can also aid in oxygenation, but administering oxygen takes precedence. While notifying the healthcare provider is important, it is a secondary action after ensuring the client's immediate need for oxygen is met. Documenting the finding in the client's medical record is necessary for continuity of care but is not the primary intervention when addressing hypoxemia.
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