ATI RN
Respiratory System Questions Questions
Question 1 of 5
The organs of the conducting zone of the respiratory system include all the following EXCEPT:
Correct Answer: D
Rationale: The correct answer is D: alveoli. The conducting zone of the respiratory system consists of structures that conduct air to and from the gas exchange surfaces. Alveoli are the site of gas exchange, not part of the conducting zone. The nose (A), trachea (B), and bronchi (C) are all part of the conducting zone as they help transport air to the lungs. Alveoli are where oxygen and carbon dioxide exchange occurs during respiration.
Question 2 of 5
The nurse assesses a male client's respiratory status. Which observation indicates that the client is experiencing difÃculty breathing?
Correct Answer: B
Rationale: The correct answer is B: Use of accessory muscles. This indicates difficulty breathing as the client is struggling to breathe, leading to the recruitment of additional muscles such as neck and chest muscles to aid in respiration. Diaphragmatic breathing (A) is a normal breathing pattern. Pursed-lip breathing (C) is a technique used to improve breathing efficiency. Controlled breathing (D) refers to breathing techniques that help in relaxation but do not necessarily indicate difficulty breathing.
Question 3 of 5
When asked by a tubercular patient how long he will have to take his TB medications, the nurse's best response would be:
Correct Answer: B
Rationale: The correct answer is B. Tuberculosis requires a prolonged treatment duration to ensure complete eradication of the bacterial infection. Typically, TB medications need to be taken for at least 6 to 9 months to prevent relapse or drug resistance. In some cases, especially if drug-resistant strains are involved, treatment can last up to 2 years. Choice A is incorrect because 2 weeks is not a sufficient duration for TB treatment. Choice C is incorrect because TB medications are not usually taken throughout the entire lifespan, but for a specific treatment period. Choice D is incorrect as it does not provide a specific and accurate answer to the patient's query regarding the duration of the treatment.
Question 4 of 5
Which of the following is NOT a function of the nasal cavities?
Correct Answer: D
Rationale: The correct answer is D: Oxygenate the blood. Nasal cavities are not directly involved in the process of oxygenating the blood. The main function of the nasal cavities is to filter dust out of incoming air, detect odors, and warm the air before it reaches the lungs. The blood is oxygenated in the lungs through the process of respiration, where oxygen from the air is absorbed into the bloodstream. Nasal cavities play a role in preparing the air for this process but do not directly oxygenate the blood.
Question 5 of 5
The enzyme responsible for converting free carbon dioxide in the blood into forms in which it can be transported in the blood is
Correct Answer: A
Rationale: The correct answer is A: carbonic anhydrase. This enzyme catalyzes the conversion of carbon dioxide and water into bicarbonate ions and protons, enabling efficient transport of CO2 in the blood. Carboxypeptidase (B) is involved in protein digestion, not CO2 transport. Carbonase (C) is not a recognized enzyme. Decarboxylase (D) catalyzes the removal of carboxyl groups from molecules, not the conversion of CO2 in the blood. Therefore, only carbonic anhydrase is the correct enzyme for this specific function.