Page 47 - ANZCP Gazette NOVEMBER 2022

11. The diameter of a NON-activated platelet usually ranges from:
a) 2-4 microns
b) 8-10 microns
c) 14-16 microns
d) 20-22 microns
12. Which of the following will reduce the likelihood of myocardial reperfusion injury:
1. The use of a leucocyte depletion filter in the cardioplegia system.
2. The addition of mannitol to the cardioplegia solution.
3. The addition of a calcium channel blocker to the cardioplegia solution.
4. The addition of glucose to the cardioplegia solution.
16. Bypass can cause a reduction in which– that requires ventilator settings to be higher post-CPB than pre-CPB.
a) Decreased FRC, increased surfactant, increased in alveolar-arterial gradient
b) Increased FRC, increased surfactant, decreased alveolar- arterial gradient
c) Decreased FRC, decreased-surfactant, decreased alveolar-arterial gradient
d) Decreased FRC, decreased surfactant, increased alveolar- arterial gradient
17. All of the following are classified as normal developmental structures of foetal circulation, except:
a) Ductus arteriosus b) Ductus venosus c) Septum primum d) Sinus arteriosus
18. The Starling curve is useful to perfusionists in matching the effects of altering _____ to determine the _____ of the heart:
a) Preload electrical activity b) Preload contractile state c) Afterload electrical activity d) Afterload contractile state
19. In patients with sickle cell disease, sickling increases with all of the following, except:
a) Hypoxia
b) Acidosis
c) Hyperthermia
d) Increased 2, 3 DPG e) all of the above
20. The usual ultrafiltrators allow molecules up to ______to undergo ultrafiltration:
a) 50 angstroms b) 200 microns
c) 300 ml
d) 20,000 Daltons e) 2,000 Daltons
a) b) c) d)
1,2,3 Correct 1,3 Correct 2,4 Correct
4 Correct
13. Tricuspid atresia is also considered a variant of :
a) Truncus arteriosus
b) Univentricular heart
c) Mitral valve stenosis
d) Uni-atrial heart
14. Which of the following urine output values indicates potentially poor renal perfusion?
a) Less than 1 ml/hr
b) Less than 1 ml/min
c) Less than 1 ml/kg/min
d) Less than 1 ml/kg/hr
15. The heat transfer in heat exchanger occurs due to ________?
a) Forced convection
b) Conduction
c) Both A and B
d) None of the above.
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