Vasodilation causes:.
Decreased pressure and decreased flow.
Decreased pressure and increased flow.
Increased pressure and increased flow.
Increased pressure and decreased flow.
The Correct Answer is B
Choice A rationale:
Vasodilation increases the diameter of blood vessels, which decreases resistance and thus decreases pressure. However, the increased diameter allows for increased blood flow, not decreased.
Choice B rationale:
Vasodilation decreases pressure due to the increased diameter of the blood vessels, and it increases flow because of the reduced resistance to blood flow.
Choice C rationale:
Vasodilation does not increase pressure; it decreases it.
Choice D rationale:
While vasodilation decreases pressure, it does not decrease flow; it increases it.
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 C
Explanation
Choice A rationale:
A pneumothorax, or collapsed lung, occurs when air leaks into the space between the lung and chest wall. This is not directly caused by pressure in the lungs dropping lower than atmospheric pressure.
Choice B rationale:
Bronchioles constricting could lead to respiratory distress, but this is not a direct result of the pressure in the lungs dropping lower than atmospheric pressure.
Choice C rationale:
When the pressure within the lungs drops lower than atmospheric pressure, air flows into the lungs. This is a fundamental principle of respiration.
Choice D rationale:
Air flows out of the lungs when the pressure within the lungs rises above atmospheric pressure, not when it drops.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.