ATI RN
Respiratory System Questions and Answers PDF Questions
Question 1 of 5
A nurse is preparing to obtain a sputum specimen from a client. Which of the following nursing actions will facilitate obtaining the specimen?
Correct Answer: B
Rationale: Step 1: Taking deep breaths helps to bring sputum up from the lungs. Step 2: Coughing deeply helps to further bring sputum up. Step 3: This action facilitates the collection of a good sputum specimen. Step 4: Limiting fluids can make sputum thicker and harder to expectorate. Step 5: Asking the client to spit may result in saliva instead of sputum. Step 6: Asking for a specimen after eating can lead to contamination.
Question 2 of 5
The atmospheric pressure at sea level is
Correct Answer: B
Rationale: The atmospheric pressure at sea level is typically around 760mm Hg, which is equivalent to 101.3 kilopascals. This is the standard atmospheric pressure used in various scientific calculations. This value represents the pressure exerted by the weight of air above a given area at sea level. Choice B is correct because it accurately reflects the standard atmospheric pressure at sea level. Choices A, C, and D are incorrect as they do not match the accepted value for atmospheric pressure at sea level.
Question 3 of 5
Although carbon dioxide is normally carried by hemoglobin, the fact that carbon monoxide reduces hemoglobin's oxygen-carrying capacity would indicate that
Correct Answer: B
Rationale: The correct answer is B because carbon monoxide competes with oxygen for the same binding sites on hemoglobin, leading to reduced oxygen-carrying capacity. This is known as competitive inhibition. Other choices are incorrect because different hemoglobins do not carry different gases (A), binding of gases is not directed by enzymes in this context (C), and carbon dioxide is a normal gas in the body (D).
Question 4 of 5
A person met with an accident and died instantly without any injury to heart, brain, stomach and kidney. One of the following is a reason for his death
Correct Answer: D
Rationale: The correct answer is D: Diaphragm got punctured. The diaphragm is a crucial muscle responsible for breathing. If it gets punctured, it can lead to immediate death due to respiratory failure. In this scenario, since there are no injuries to vital organs like the heart, brain, stomach, or kidney, the only plausible reason for instant death would be a punctured diaphragm affecting the person's ability to breathe. A: Intestine getting twisted would not lead to instant death without affecting the heart, brain, stomach, or kidney. B: RBC becoming coagulated would not result in immediate death without directly impacting vital organs. C: Stomach stopping digestion is not a life-threatening condition that would cause instant death without injury to vital organs.
Question 5 of 5
Oxygen and carbon dioxide concentration in the alveolar air is respectively
Correct Answer: D
Rationale: The correct answer is D (13.1% oxygen and 5% carbon dioxide). In the alveolar air, the oxygen concentration is around 13.1%, which is lower than atmospheric air (21%) due to gas exchange in the lungs. The carbon dioxide concentration in alveolar air is around 5%, higher than atmospheric air (0.04%). Choices A, B, and C have oxygen concentrations higher than what is found in alveolar air, making them incorrect. Choice B also has a carbon dioxide concentration higher than what is typically found in alveolar air, making it incorrect.