ATI RN
Questions About the Respiratory System Questions
Question 1 of 5
The effect of pH on hemoglobin saturation is known as the
Correct Answer: B
Rationale: The correct answer is B: Bohr effect. This effect describes how pH affects hemoglobin saturation. When pH decreases (becomes more acidic), hemoglobin's affinity for oxygen decreases, promoting oxygen unloading in tissues. This is due to the protonation of histidine residues in hemoglobin, altering its structure. The other choices are incorrect because the Bainbridge reflex is related to heart rate regulation in response to changes in blood volume, the pulmonary reflex relates to the regulation of breathing in response to changes in blood oxygen levels, and the respiratory effect is a general term that does not specifically describe the pH effect on hemoglobin saturation.
Question 2 of 5
What dietary recommendation is often given to heart failure patients to manage their condition?
Correct Answer: D
Rationale: The correct answer is D: Low-sodium diet. Sodium can exacerbate fluid retention in heart failure patients, leading to increased workload on the heart. A low-sodium diet helps reduce fluid retention and manage symptoms. High-sodium diet (A) is detrimental to heart failure patients. Low-fat diet (B) and low-sugar diet (C) may be beneficial for overall health but are not specific recommendations for managing heart failure.
Question 3 of 5
The left lung has two lobes and they are separated by Deep fissure called .
Correct Answer: B
Rationale: The correct answer is B: oblique fissure. The left lung has two lobes, the upper lobe and the lower lobe, which are separated by the oblique fissure. This fissure extends obliquely downward and forward from the posterior border of the lung. Rationale: 1. The horizontal fissure separates the right lung into upper and middle lobes, not the left lung. 2. There is no such structure as a vertical fissure in the human lung anatomy. 3. "Non of them" is grammatically incorrect and does not provide a valid option.
Question 4 of 5
which factors affect on exercise.
Correct Answer: D
Rationale: The correct answer is D, "All of the above." Body temperature (A) is a factor as it affects how efficiently muscles work during exercise. Smoking (B) can negatively impact exercise performance and overall health. Physical exercise (C) is an obvious factor that directly influences exercise outcomes. Therefore, all three factors are interconnected and collectively influence an individual's exercise capacity and performance.
Question 5 of 5
The nurse is preparing a presentation that highlights the benefits of annual influenza vaccination. The nurse correctly targets which groups Except?
Correct Answer: A
Rationale: The correct answer is A because children aged 3 to 6 months are too young to receive the influenza vaccine. They are not recommended for vaccination until they reach 6 months of age. Choice B is correct as older diabetics are at higher risk for complications from the flu. Choice C is correct as pregnant women are a high-risk group for flu-related complications. Choice D is correct as home health aides are in close contact with vulnerable populations.