Where does gas exchange occur?.
The alveoli.
The bronchioles.
The bronchus.
The lungs.
The Correct Answer is A
Choice B rationale:
The bronchioles are part of the airway that leads to the alveoli, but gas exchange does not occur here.
Choice C rationale:
The bronchus is a larger airway that leads to the bronchioles and then to the alveoli, but gas exchange does not occur here.
Choice D rationale:
While the lungs contain the alveoli where gas exchange occurs, saying that gas exchange occurs in the lungs is not as precise as saying it occurs in the alveoli.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Abdominal thrusts, also known as the Heimlich maneuver, are a first-aid technique used to treat conscious choking victims in which the rescuer delivers thrusts to a patient’s upper abdominal region. This motion pushes air from the lungs up through the throat to dislodge foreign objects and treat upper airway obstructions.
Choice B rationale:
Chest thrusts can also be used if needed. However, they are not the primary method for dislodging a foreign object in someone that is choking.
Choice C rationale:
Chest pumps are not a recognized method for dislodging a foreign object in someone that is choking.
Choice D rationale:
Bowel thrusts are not a recognized method for dislodging a foreign object in someone that is choking.
So, the correct answer is Choice A.
Correct Answer is A
Explanation
Choice A rationale:
Capillaries are the smallest blood vessels that connect arteries and veins. They allow nutrients in the blood to diffuse to the body’s tissues.
Choice B rationale:
Arteries carry oxygen-rich blood from the heart to the tissues of the body. They do not connect the two sides of the vascular system.
Choice C rationale:
Venules are very small blood vessels that connect capillaries with veins throughout the body. They do not connect the two sides of the vascular system.
Choice D rationale:
Veins carry blood back toward the heart. They do not connect the two sides of the vascular system
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