Study for a medical examination (4)
I believe the answer is:
scan
I believe this is a double definition.
'study' is the first definition.
(thesaurus)
'a medical examination' is the second definition.
(I've seen this before)
'for' acts as a link.
(Other definitions for scan that I've seen before include "Look briefly through" , "Look at quickly" , "Look over cursorily" , "Study systematically" , "Examine intensely -- examine superficially" .)