ATI RN
Oxygenation NCLEX Questions Questions
Question 1 of 5
Myocardial blood flow is unidirectional; the nurse knows that the correct pathway is which of the following?
Correct Answer: C
Rationale: The correct answer is C because the pathway of myocardial blood flow follows the sequence from the right atrium to the right ventricle, then to the left atrium, and finally to the left ventricle. This unidirectional flow ensures efficient oxygenation of the blood before it is pumped out to the body. Choice A is incorrect because it reverses the order of the ventricles before the atria, disrupting the normal flow of blood in the heart. Choice B is incorrect because it switches the atria before the ventricles, which is not the correct sequence of myocardial blood flow. Choice D is incorrect because it reverses the order of the ventricles, leading to inefficient oxygenation of blood before it is distributed to the body.
Question 2 of 5
A nurse is caring for a client who is post-operative following a lobectomy. Which of the following actions should the nurse take to prevent complications?
Correct Answer: B
Rationale: The correct answer is B: Encourage the client to use an incentive spirometer. This action helps prevent complications by promoting deep breathing, improving lung expansion, and preventing respiratory complications such as pneumonia and atelectasis. Incentive spirometry aids in clearing secretions and maintaining optimal lung function post-operatively. A: Limiting the client's fluid intake is not recommended as adequate hydration is essential for post-operative recovery and preventing complications. C: Placing the client in a supine position can lead to decreased lung expansion and increase the risk of respiratory complications. D: Administering pain medication to suppress coughing is not ideal as coughing is necessary for clearing secretions and preventing respiratory complications.
Question 3 of 5
A client is using a metered-dose inhaler (MDI) for the first time. What is the correct sequence for its use?
Correct Answer: A
Rationale: The correct sequence for using a metered-dose inhaler (MDI) for the first time is A: Shake the inhaler, exhale fully, press the inhaler while inhaling deeply, hold breath for 10 seconds. Rationale: 1. Shake the inhaler: This helps to mix the medication properly. 2. Exhale fully: Emptying the lungs before inhaling ensures better medication delivery. 3. Press the inhaler while inhaling deeply: This allows the medication to reach deep into the lungs. 4. Hold breath for 10 seconds: Holding the breath allows the medication to be absorbed effectively. Summary of other choices: B: Incorrect because inhaling quickly may lead to improper medication delivery. C: Incorrect because pressing the inhaler before inhaling may result in less effective medication delivery. D: Incorrect because shaking the inhaler after pressing it may disrupt the medication dispersion.
Question 4 of 5
A nurse is monitoring a client on a ventilator for acute respiratory distress syndrome (ARDS). Which finding requires immediate action?
Correct Answer: C
Rationale: The correct answer is C: Peak inspiratory pressure of 35 cm H2O. A peak inspiratory pressure of 35 cm H2O indicates high airway pressure, which can lead to barotrauma and further lung damage in a client with ARDS. Immediate action is needed to prevent complications. A: Oxygen saturation of 92% is slightly low but not critically concerning in this context. B: Tidal volume of 450 mL is within the normal range and does not indicate an immediate issue. D: Respiratory rate of 18 breaths per minute is within normal limits and does not require immediate action.
Question 5 of 5
The nurse is reviewing discharge instructions with a client who has a tracheostomy. What should the nurse emphasize?
Correct Answer: B
Rationale: The correct answer is B because using sterile technique for tracheostomy care helps prevent infections. Sterile technique minimizes the risk of introducing harmful bacteria into the tracheostomy site, reducing the chance of complications. Changing tracheostomy ties daily (Option A) may not be necessary unless they are soiled or wet. Avoiding humidification (Option C) can lead to mucus buildup and blockage, causing breathing difficulties. Cleaning the stoma site with alcohol daily (Option D) can irritate the skin and increase the risk of infection.