ATI RN
Questions for the Respiratory System Questions
Question 1 of 5
Hemoglobin
Correct Answer: D
Rationale: The correct answer is D because hemoglobin releases oxygen more readily in highly active tissues due to increased metabolic demand for oxygen. This is known as the Bohr effect. Choice A is incorrect as hemoglobin binds oxygen in the lungs where oxygen partial pressure is high. Choice B is incorrect as hemoglobin actually releases oxygen in acidic conditions to increase oxygen delivery to tissues. Choice C is incorrect as hemoglobin releases oxygen in warmer areas to facilitate oxygen delivery to metabolically active tissues.
Question 2 of 5
Partial pressure of oxygen in the inspired and expired air is respectively
Correct Answer: A
Rationale: The correct answer is A (158 and 116 mm Hg) because in inspired air, the partial pressure of oxygen is around 158 mm Hg, which corresponds to the atmospheric oxygen level. During expiration, some oxygen is exchanged for carbon dioxide, leading to a decrease in oxygen partial pressure to around 116 mm Hg. Choice B is incorrect because the partial pressure of oxygen in expired air is not as high as 40 mm Hg, which is too low for the oxygen content in the air we breathe. Choice C is incorrect because the partial pressure of oxygen in inspired air is not exactly 100 mm Hg, and the partial pressure in expired air is not as close to 95 mm Hg. Choice D is incorrect because the partial pressure of oxygen in inspired air is not as low as 40 mm Hg, and the partial pressure in expired air is not as high as 95 mm Hg.
Question 3 of 5
Lungs have a large number of narrow tubes called
Correct Answer: B
Rationale: The correct answer is B: Bronchioles. Bronchioles are small, narrow tubes in the lungs that branch off from the bronchi. They play a crucial role in conducting air to the alveoli for gas exchange. Alveoli (choice A) are tiny air sacs at the end of bronchioles where gas exchange occurs, not narrow tubes. Bronchi (choice C) are larger air passages that branch off from the trachea, leading to the bronchioles. Alveolar ducts (choice D) are tiny ducts that connect bronchioles to alveolar sacs, but they are not the large number of narrow tubes found in the lungs. Therefore, the correct answer is bronchioles as they specifically fit the description of narrow tubes in the lungs.
Question 4 of 5
A client with a new tracheostomy is being seen in the oncology clinic. What finding by the nurse best indicates that goals for the client's decrease in self-esteem are being met?
Correct Answer: B
Rationale: The correct answer is B because joining a book club shows an improvement in social engagement and participation, indicating an increase in self-esteem. This choice demonstrates the client's interest in activities outside of their healthcare needs, promoting a sense of normalcy and connection. In contrast, options A, C, and D focus solely on stoma care and physical aspects, not directly related to self-esteem. Understanding stoma care (A) is important but does not address self-esteem directly. Family assistance (C) is supportive but does not necessarily indicate an improvement in the client's self-esteem. Skin integrity (D) is essential for physical health but does not reflect self-esteem.
Question 5 of 5
A client is in the family practice clinic reporting a severe cold that started 4 days ago. On examination the nurse notes that the client also has a severe headache and muscle aches. What action by the nurse is best?
Correct Answer: D
Rationale: The correct answer is D: Teach the client to sneeze in the upper sleeve. This action is best because the client is showing symptoms of a cold, which is typically caused by a virus spread through respiratory droplets. Instructing the client to sneeze in the upper sleeve can help prevent the spread of the virus to others. Choice A is incorrect because oseltamivir is used to treat influenza, not the common cold. Choice B is unnecessary as hospital admission is not typically warranted for a cold. Choice C is also incorrect as the client is already sick and a flu vaccine would not be effective at this point in time.