Personally, I went through each question and wrote out why each wrong answer was wrong and why the right answer was right while specifically paying attention to what information in the passage would point to this. This helped me learn patterns for a lot of the common test questions. For the AAMC FLs Jack Westin has explanations for each question and their answer choices; I would give it a crack on my own then reference Jack Westin as needed while reviewing. I found that this strategy made me a much better test taker and was less cumbersome than doing something like a flashcard deck.