ATI RN
Oxygen Cycle Questions and Answers Questions
Question 1 of 5
The nurse is providing discharge teaching for a client with tuberculosis. Which statement indicates correct understanding?
Correct Answer: C
Rationale: The correct answer is C: "I need to schedule regular follow-up sputum tests." This is correct because regular sputum tests are necessary to monitor the effectiveness of TB treatment and to ensure the disease is not spreading. Choice A is incorrect as masks are not generally needed at home. Choice B is wrong because stopping medication early can lead to drug resistance. Choice D is inaccurate as spicy foods do not affect TB treatment. Regular sputum tests are essential for monitoring progress and adjusting treatment if needed.
Question 2 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 3 of 5
The nurse is assessing a client with a suspected pulmonary embolism. Which diagnostic test is most definitive?
Correct Answer: C
Rationale: The correct answer is C: Computed tomography pulmonary angiography (CTPA). This test is most definitive for diagnosing pulmonary embolism as it provides detailed images of the blood vessels in the lungs, allowing for visualization of any blockages. Step-by-step rationale: 1. CTPA is the gold standard diagnostic test for pulmonary embolism due to its high sensitivity and specificity. 2. It can accurately identify the location and size of the blood clot in the pulmonary arteries. 3. CTPA is non-invasive and can be performed quickly, making it a preferred choice in the acute setting. Summary: A (Chest X-ray) is not sensitive enough to diagnose pulmonary embolism. B (D-dimer test) is a screening tool but not definitive for diagnosis. D (V/Q scan) is an alternative test but CTPA is more accurate and widely used.
Question 4 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 5 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.