ATI RN
Questions for Respiratory System Questions
Question 1 of 5
Volume of air left after maximum forceful expiration in human lung is
Correct Answer: B
Rationale: The correct answer is B: Residual volume. After maximum forceful expiration, residual volume is the volume of air left in the lungs to prevent lung collapse. Total lung capacity (A) is the maximum amount of air the lungs can hold. Vital capacity (C) is the maximum amount of air that can be exhaled after a maximum inhalation. Tidal volume (D) is the volume of air moved in and out of the lungs during normal breathing, not after a forceful expiration.
Question 2 of 5
A nurse is assessing a client who has a tracheostomy. The nurse notes that the tracheostomy tube is pulsing with the heartbeat as the client's pulse is being taken. No other abnormal findings are noted. What action by the nurse is most appropriate?
Correct Answer: D
Rationale: The correct answer is D. 1. Pulsation of the tracheostomy tube with the heartbeat indicates a possible vascular anomaly or the tube being in contact with a major vessel. 2. Staying with the client ensures immediate monitoring and intervention if needed. 3. Having someone else call the primary health care provider promptly allows for timely assessment and intervention. 4. Options A, B, and C are incorrect. Option A is premature without assessing the client further. Option B is incorrect as pulsation is not a normal finding in tracheostomy tubes. Option C is unsafe and can lead to airway compromise.
Question 3 of 5
Which teaching point is most important for the client with a peritonsillar abscess?
Correct Answer: B
Rationale: The correct answer is B: Take all antibiotics as directed. This is the most important teaching point for a client with a peritonsillar abscess because antibiotics are crucial in treating the infection and preventing complications. Here's the rationale: 1. Antibiotics target the bacteria causing the abscess, helping to clear the infection. 2. Incomplete antibiotic course can lead to antibiotic resistance and recurrence of infection. 3. Not following antibiotic instructions can result in treatment failure and worsening of the abscess. 4. Gargling with warm salt water (choice A) may provide temporary relief but does not address the underlying infection. Liquid medications (choice C) and handwashing (choice D) are important but not as vital as completing the antibiotic course.
Question 4 of 5
Which of the following neurological controls of ventilation responds to changes in the pH and levels of oxygen and CO2 in the blood?
Correct Answer: A
Rationale: The correct answer is A. Central chemoreceptors in the medulla are highly sensitive to changes in pH and CO2 levels, influencing respiratory rate and depth. B is incorrect because peripheral chemoreceptors respond mainly to O2 levels. C refers to general respiratory control centers, not specific chemoreceptor function. D is incorrect as the spinal cord lacks central chemoreceptors.
Question 5 of 5
You are evaluating and assessing a client diagnosed with chronic emphysema. The client is on oxygen at a flow rate of 5 L/min by nasal cannula. Which finding concerns you immediately?
Correct Answer: B
Rationale: The correct answer is B. A respiratory rate of 8 breaths/minute is abnormally low and indicates potential hypoventilation or respiratory depression, which is concerning in a client with chronic emphysema. Fine crackles (A) and barrel chest (D) are common findings but not immediately alarming. Sitting up and leaning forward (C) is a compensatory mechanism for easier breathing.