ATI RN
Exam Questions on Respiratory System Questions
Question 1 of 5
The physician orders a PFT. The patient asks you how the test is performed. The best response is:
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
A nurse is caring for a client who received benzocaine spray prior to a recent bronchoscopy. The client presents with continuous cyanosis even with oxygen therapy. Which action should the nurse take next?
Correct Answer: B
Rationale: The correct answer is B: Notify the Rapid Response Team. Continuous cyanosis despite oxygen therapy following benzocaine administration may indicate methemoglobinemia, a serious adverse effect. Rapid Response Team should be alerted for immediate intervention and monitoring. Albuterol treatment (A) would not address methemoglobinemia. Assessing peripheral pulses (C) may not provide immediate assistance. Obtaining blood and sputum cultures (D) is not the priority in this situation.
Question 3 of 5
Hemoglobin affinity for Oxygen is to the P50 (O2 tension that produces 50% saturation of Hb)
Correct Answer: B
Rationale: The correct answer is B. Hemoglobin affinity for oxygen is inversely related to P50. When P50 is lower, hemoglobin has higher affinity for oxygen, meaning it binds oxygen more readily at lower oxygen tensions. Conversely, when P50 is higher, hemoglobin has lower affinity for oxygen. This relationship is crucial for the efficient loading and unloading of oxygen in tissues. Choices A, C, and D are incorrect because hemoglobin affinity for oxygen is not directly related, unrelated, or simply related to P50.
Question 4 of 5
Which of the following gas mixture is used by Divers to prevent Oxygen toxicity
Correct Answer: B
Rationale: The correct answer is B: Oxygen and Nitrogen. This gas mixture is used by divers to prevent Oxygen toxicity because it closely mimics the composition of the air we breathe. Oxygen toxicity can occur at high partial pressures of Oxygen, which can lead to seizures and other serious health issues. Choices A, C, and D are incorrect because CO2 and rare gases are not typically used in diving gas mixtures, and including CO2 in the mixture can increase the risk of Oxygen toxicity. Nitrogen is used as a diluent to reduce the partial pressure of Oxygen, making it safer for divers.
Question 5 of 5
A patient asks the nurse why an infection in his upper respiratory system is affecting the clarity of his speech. Which structure serves as the patient's resonating chamber in speech?
Correct Answer: C
Rationale: Rationale: The paranasal sinuses act as resonating chambers in speech production due to their location near the nasal cavity and their ability to amplify sound vibrations. When infected, the sinuses can become inflamed, affecting speech clarity. The trachea (A) is a passageway for air, not involved in speech. The pharynx (B) is a common pathway for both air and food, not a resonating chamber. The larynx (D) contains the vocal cords for sound production but is not primarily responsible for speech resonance.