CRL Quiz 2 2009

1

Which one of the following statements regarding the action potential of a cell in the cardiac sinoatrial (SA) node is NOT CORRECT?


2

Which one of the following statements regarding cardiac myocyte contraction is NOT CORRECT?


3

A 60-year-old man presents to the Emergency Department with severe shortness of breath. An echocardiogram shows that his left ventricle is dilated and has severely decreased function. What intracardiac pressure is most likely to be elevated?


4

Which one of the following statements can increase by more than 2 times during exercise?


5

A 70-year-old woman has severe peripheral oedema. This is most likely to be associated with


6

Myocardial infarction differs from unstable angina in that infarction


7

Which one of the following is considered the primary mechanism of action of the cardiac glycosides used in the management of heart failure?


8

Which one of the following statements about the use of lignocaine as an antiarrhythmic agent is NOT CORRECT?


9

Which one of the following class of antihypertensive agents will most likely result in postural hypotension?


10

Which one of the following statements about the use of the nitrovasodilator glyceryltrinitrate in the management of stable angina is correct?


11

Which one of the following statements regarding haemostasis is NOT CORRECT?


12

A 45-year-old male has been receiving warfarin therapy, following surgery six months ago to replace his mitral valve with a metallic prosthetic valve. Until recently his INR has been stable and within the desired range. He presents for assessment of his clotting time following an episode of acute alcohol intoxication. Following this episode of acute alcohol intoxication, one might expect that clotting time in this patient might be


13

Longstanding, mild or moderate systemic hypertension is associated with which one of the following?


14

Which one of the following statements concerning atheroma is correct?


15

A 68-year-old man with a long history of ischaemic heart disease dies suddenly at home. At autopsy you find an area of tough, pale and almost white tissue replacing an area of his left ventricular myocardium. Which one of the following statements is correct?