A nurse is explaining the pathophysiology of pulmonary edema to a group of nursing students. Which physiological mechanism underlies the development of pulmonary edema?
Increased lung compliance
Impaired alveolar fluid clearance
Constricted pulmonary blood vessels
Enhanced left ventricular contractility
The Correct Answer is B
A) Incorrect. Increased lung compliance would not contribute to pulmonary edema; in fact, it might reduce the risk of fluid accumulation in the lungs.
B) Correct. Impaired alveolar fluid clearance, often due to altered pulmonary capillary permeability, is a key factor in the pathophysiology of pulmonary edema.
C) Incorrect. Constricted pulmonary blood vessels (vasoconstriction) would reduce blood flow to the lungs and are not a primary factor in pulmonary edema.
D) Incorrect. Enhanced left ventricular contractility, while beneficial for cardiac function, is not directly related to the development of pulmonary edema.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Correct. Increased hydrostatic pressure in pulmonary capillaries, often due to left ventricular failure, leads to the filtration of fluid from the capillaries into the alveoli and interstitial spaces, causing pulmonary edema.
B) Incorrect. Decreased capillary permeability is not typically a primary factor in the development of pulmonary edema.
C) Incorrect. Enhanced lymphatic drainage from the lungs is not a primary mechanism responsible for the accumulation of fluid in pulmonary edema.
D) Incorrect. Elevated colloid osmotic pressure in pulmonary vessels would oppose fluid accumulation in the alveoli and is not a primary cause of pulmonary edema.
Correct Answer is C
Explanation
A) Incorrect. Elevated body temperature is not a typical manifestation of pulmonary edema.
B) Incorrect. Bradycardia is not a common finding in pulmonary edema.
C) Correct. Crackles in the lung fields are a hallmark sign of pulmonary edema due to the accumulation of fluid in the alveoli.
D) Incorrect. Hypertension is not a typical finding in pulmonary edema; it is more commonly associated with conditions like heart failure.
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.