ATI RN
Multiple Choice Questions for Respiratory System Questions
Question 1 of 5
The nurse is preparing the patient for and will assist the physician with a thoracentesis in the patient’s room. Number the following actions in the order the nurse should complete them.
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
Partial pressure of O2 in the inspired air is 156 mm Hg and that of CO2 is
Correct Answer: A
Rationale: Step-by-step rationale: 1. Inspired air has O2 partial pressure of 156 mm Hg. 2. In alveoli, O2 is exchanged with CO2. 3. CO2 partial pressure in alveoli is lower than in inspired air. 4. Therefore, CO2 partial pressure in inspired air must be much lower. 5. Choice A (0.3 mm Hg) is the only option significantly lower than O2 pressure, making it the correct answer. Summary: - Choice A is correct as it reflects the lower CO2 partial pressure compared to O2. - Choices B, C, and D are incorrect as they do not show a significant difference in partial pressure compared to O2.
Question 3 of 5
2,3 DPG (Diphospho glycerate) is an important molecule that competes for Oxygen binding sites of Hemoglobin. It is present in
Correct Answer: B
Rationale: The correct answer is B: Erythrocytes. 2,3 DPG is a molecule found inside red blood cells (erythrocytes) that helps in regulating the oxygen binding capacity of hemoglobin. It competes for oxygen binding sites and helps in the release of oxygen to tissues. Choice A (Blood Plasma) is incorrect because 2,3 DPG is not found freely circulating in the blood plasma. Choice C (Leucocytes) is incorrect as 2,3 DPG is not primarily found in white blood cells. Choice D (Blood of lungs) is incorrect as 2,3 DPG is mainly located within red blood cells and not in the blood present in the lungs.
Question 4 of 5
Rectal respiration is seen in
Correct Answer: C
Rationale: Rectal respiration in insects involves the exchange of gases through the anus. The correct answer is C, Niads of Dragonfly, as they have specialized structures called rectal gills for respiration. Cockroach (A), Spider (B), and Water flea (D) do not possess rectal gills or exhibit rectal respiration. Cockroaches have spiracles for respiration, spiders have book lungs or tracheal systems, and water fleas have gills located elsewhere on their bodies. Thus, only Niads of Dragonfly demonstrate rectal respiration, making it the correct choice.
Question 5 of 5
A medical nurse has admitted a patient to the unit with a diagnosis of failure to thrive. The patient has developed a fever and cough, so a sputum specimen has been obtained. The nurse notes that the sputum is greenish and that there is a large quantity of it. The nurse notifies the patient's physician because these symptoms are suggestive of what?
Correct Answer: C
Rationale: The correct answer is C: Infection. The greenish color and large quantity of sputum suggest an infection in the lungs, typically caused by bacteria. Greenish sputum is often a sign of bacterial pneumonia. Fever and cough are common symptoms of a lung infection, along with increased sputum production. Pneumothorax (A) is characterized by a collapsed lung and does not typically present with greenish sputum. Lung tumors (B) may cause cough and sputum production, but the color of the sputum is not specific to tumors. Pulmonary edema (D) is a condition where fluid accumulates in the lungs, leading to shortness of breath and pink, frothy sputum, not greenish sputum.