Question 7

Draw and label a cross section of the lumbar epidural space (50% of marks). Describe 
the pharmacology of bupivacaine (50% of marks).

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College Answer

It was expected answers would include a diagram of a cross section and label the lumbar 
epidural space and the key landmarks namely dura, subarachnoid space, epidural space. Most 
candidates were able to give a schematic representation even if not being able to draw. Some 
candidates confused the subdural space with the epidural space. Pharmacology of bupivacaine 
needed to cover both pharmacokinetics and pharmacodynamics. Several candidates addressed 
only one of these components and so missed the opportunity to score marks.