18.Regarding aortic dissection
a.
The most common cause of death is dissection involving the coronary
arteries
b.
Usually commences with an intimal tear within 10cm of the aortic valve
c.
Men aged > 60years with antecedent HT constitute one of he most
common at risk groups
d.
Cystic medial degeneration is a rare pre exsisting histological lesion
19. Which of the possible complications of acute myocardial infarction would be
expected to be most delayed in onset?
a.
Arrhythmia
b.
Myocardial rupture
c.
Congestive heart failure
d.
Mural thrombus
20.The most frequent of all valve abnormalities is
a.
Aortic stenosis
b.
Aortic regurgitation
c.
Mitral stenosis
d.
Mitral regurgitation
21. Which is not a major criteria for rheumatic fever
a.
Sydenham chorea
b.
Subcutaneous nodules
c.
Pancarditis
d.
Erythema multiforme
22, The most likely organism responsible for prosthetic valve endocarditis is
a.
Staphylococci epidermis
b.
Staphylococcus aureus
c.
Streptococci viridans
d.
Haemophilus influenza
23. the most common form of pericarditis is
a.
Purulent
b.
Haemorrhagic
c.
Fibrinous
d.
Caseous