Which condition is caused by fatty, fibrous plaques that obstruct the lumen of coronary arteries?
Atherosclerosis
Atrial fibrillation
Thrombophlebitis
Hypertension
The Correct Answer is A
A. Atherosclerosis:
Atherosclerosis is the buildup of fatty plaques in arterial walls, narrowing the arteries and restricting blood flow.
B. Atrial fibrillation:
AFib is an electrical conduction problem in the atria, not a vascular blockage.
C. Thrombophlebitis:
Thrombophlebitis is vein inflammation with clot formation, not plaque formation in arteries.
D. Hypertension:
Hypertension is high blood pressure, which can result from atherosclerosis but is not the direct cause of arterial plaque.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. A callus that forms on an ossicle:
No callus forms on the ossicles with cerumen impaction. Ossicle problems (like otosclerosis) involve bone remodeling, not wax.
B. Inflammation of the innermost part of the ear:
This describes labyrinthitis or inner ear infections, not cerumen impaction.
C. Blockage of the ear canal due to built-up ear wax:
Cerumen impaction is the accumulation of earwax blocking the external ear canal, leading to symptoms like hearing loss or fullness.
D. Accumulation of skin cells behind the tympanic membrane or within the mastoid bone:
This describes a cholesteatoma, not cerumen impaction.
Correct Answer is D
Explanation
A. Mitral stenosis:
Mitral stenosis is narrowing of the mitral valve, often due to rheumatic heart disease, not IV drug use or infection.
B. Angina pectoris:
Angina is chest pain due to ischemia, not infection or vegetation on heart valves.
C. Aortic insufficiency:
Aortic insufficiency is leakage of the aortic valve, leading to volume overload, not typically associated with infection and petechiae.
D. Infective endocarditis:
IV drug users are at high risk for infective endocarditis. Symptoms include fever, chills, weakness, petechiae, and vegetations seen on echocardiogram.
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