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FRACP PAST PAPERS - CARDIOVASCULAR - page 10 / 17

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17.

Bioprostheses of the aortic valve

  A.  eventually develop the same disease as the native valve.

  B.  last longer in younger than older patients.

  C.  do not require prophylaxis against endocarditis.

  D.  do not require long-term anticoagulation.                           

  E. .  are haemodynamically superior to mechanical prostheses

18.

With respect to automatic irnplantable defibrillators:                        

A.

implanting a defibrillator with epicardial patches carries a  mortality rate of about 2%.                                         

B.

pace-termination functions are available in these devices.

C.

the incidence of sudden arrhythmia death after successful  defibrillator implantation is about 1% per  annum             

D.

defibrillator shocks are dangerous for those in contact with  the patient at the time.

E.

implantation is not indicated in severe cardiac failure.

19.

Which of the following statements is/are true of percutaneous  transluminal coronary angioplasty?

  A.  The primary success rate of the procedure is more than 70%.

  B.  Re-stenosis, if it occurs, is within 6 months of the   procedure.                                                      

  C.  Long-term anticoagulant therapy reduces the frequency of  re-stenosis.

  D.  The mortality rate as an elective procedure is about 2%.

  E.  Long-term antiplatelet therapy reduces the frequency of re- stenosis.         

20.

Concerning the prognosis of myocardial infarction:            

A.

hospital mortality is unrelated to age.                       

B.

late sudden death in survivers of ventricular fibrillation is  more likely if acute myocardial infarction evolves than if no   evidence for acute infarction is found

C.

survival up to one year after  infarction is mainly dependent on the number  of diseased  coronary   arteries.

D.

D. poor left ventricular function is associated with an increased  likelihood of later ventricular   tachycardia.

E.

E. electrophysiological study identifies patients prone to die  suddenly in the next year.

21.

A young male following trauma develops ARDS. He is intubated and ventilated but now breathing spontaneously. He has a central line with TPN and a Swan Ganz catheter in situ - both for 10 days. He is on Ceftriaxone for persisting bilateral pulmonary infiltrates and blood cultures to date have been negative. He becomes very unwell and septic, T 40, BP 70/50. His blood and urine are sent for culture and his CXR is unchanged. After the initial resuscitation you should

A.

change all lines and send for culture

B.

culture endotracheal secretions

C.

bronchoscopy +/- TBB

D.

echo

E.

broad spectrum antibiotics

22.

Haemodynamic response to SVT can be predicted by

A.

ventricular rate

B.

QT interval

C.

relationship between P waves and QRS complexes

D.

QRS width

E.

variability in the P wave morphology

23.

Concerning drug metabolism in congestive cardiac failure

A.

decreased gastric absorption

B.

decreased oral bioavailability of drugs with “low” hepatic extraction

C.

decreased clearance of drugs with “high” hepatic extraction

D.

decreased distribution of intravenously administered drugs

24.

Which of the following are consistent with Constrictive Pericarditis

A.

mitral regurgitation

B.

atrial fibrillation

C.

RVEDP=LVEDP

D.

unimpeded early diastolic ventricular filling

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