I spend a few hours reviewing things I got right and wrong. Usually, I will try and figure out the reasoning for incorrect answer before looking at the correct answer explanation. At times I will break out a textbook and look up a topic.
It take me a whole day to go over a test (between 4-6 hours). However I retype out the question and answer in to study sheets and add diagrams, illustrtationa and further explanation for each topic I miss. So I basically am doing a review of all the topics missed in addition to just going over my wrong answers. I spend very little time on verbal (10 min?) since I don't think going over wrong answers on verbal is beneficial.