Q- Which one of the following is the most common etiology of abdominal aortic aneurysm in the United States?
A- Atherosclerosis
B- Cystic medial necrosis
C- Rheumatic heart disease
D- Turner syndrome
A- Atherosclerosis- Other choices are not as common as atherosclerosis though they can lead to the development of aortic aneurysms. They are not as common as atherosclerosis especially in elderly population.
Q- Amiodarone is considered one of which of the following classes of anti-arrhythmic drugs?
A- Class I
B- Class II
C- Class III
D- Class IV
C- Class III- Amiodarone is one of the potassium-channel blockers. Class I are sodium-channel blockers, Class II are beta blockers while Class IV are calcium-channel blockers.
Q- Which one of the following conditions is a long term complication of cystic fibrosis?
A- Adenocarcinoma of the lung
B- Bronchiectasis
C- Emphysema
D- Pneumothorax
B- Bronchiectasis- Cystic fibrosis is characterized by inflammatory obstruction and dilation of the bronchi throughout the lungs which eventually leads to bronchiectasis.
