ATI RN
Oxygen Cycle Questions and Answers Questions
Question 1 of 5
A client with asthma is prescribed a long-acting beta2-agonist. What is the primary purpose of this medication?
Correct Answer: C
Rationale: The correct answer is C: To prevent nocturnal asthma symptoms. Long-acting beta2-agonists help to relax and open the airways, preventing nocturnal asthma symptoms by maintaining bronchodilation throughout the night. This medication is not used for acute relief of bronchospasm (choice A), reducing airway inflammation (choice B), or thinning mucus secretions (choice D). It is specifically indicated for long-term control and prevention of asthma symptoms.
Question 2 of 5
The nurse is assessing a client with suspected pneumonia. Which diagnostic test is most definitive for confirming the diagnosis?
Correct Answer: C
Rationale: The correct answer is C: Sputum culture and sensitivity. This test is most definitive for confirming pneumonia as it directly identifies the causative organism present in the sputum, guiding appropriate antibiotic therapy. Chest X-ray (A) can show infiltrates but doesn't confirm the pathogen. CBC (B) can show elevated white blood cells, but not specific to pneumonia. ABG analysis (D) assesses gas exchange and oxygenation status, not a direct confirmation of pneumonia.
Question 3 of 5
A client with COPD is receiving oxygen at 2 L/min via nasal cannula. The client reports drowsiness and confusion. What is the nurse's priority action?
Correct Answer: B
Rationale: The correct answer is B. Assessing the client's oxygen saturation and respiratory status is the priority. Drowsiness and confusion may indicate oxygen overdose, so assessing these parameters will help determine if the client is experiencing oxygen toxicity. Increasing the oxygen flow rate (choice A) could worsen the symptoms. Discontinuing oxygen therapy (choice C) without assessment could lead to hypoxia. Notifying the healthcare provider (choice D) can be done after the initial assessment.
Question 4 of 5
The nurse palpates the posterior chest while the patient says '99' and notes absent fremitus. Which action should the nurse take next?
Correct Answer: D
Rationale: The correct answer is D because auscultating breath sounds is the next appropriate action after noting absent fremitus. This helps assess for additional signs of respiratory issues. Palpating the anterior chest for barrel chest (choice A) is not necessary at this point. Encouraging the patient to turn, cough, and deep breathe (choice B) is more appropriate for assessing for chest expansion. Reviewing the chest x-ray report for evidence of pneumonia (choice C) is premature without further assessment of breath sounds.
Question 5 of 5
The nurse teaches a patient about peak flow meter use. Which action by the patient indicates that teaching was successful?
Correct Answer: D
Rationale: The correct answer is D because using an albuterol inhaler for peak flows in the yellow zone indicates that the patient understands how to respond to worsening symptoms. Albuterol is a rescue inhaler used to manage asthma exacerbations, which are typically indicated by peak flows in the yellow zone. Inhaling rapidly through the peak flow meter (A) is not the correct technique and can lead to inaccurate readings. Taking montelukast (B) is a daily controller medication and not indicated for immediate symptom relief. Calling the healthcare provider when in the green zone (C) is unnecessary as the green zone signifies good lung function.