CST Exam Content OutlineFrom the NBSTSA: "All the areas listed may appear on the examination. Candidates must correctly answer 102 questions to pass the CST examination. There are 175 questions on the test, 150 of which are scored, and 25 of which are being tested for future examinations, and do not count for or against the individual taking the test. We suggest that you mark those areas with which you are not familiar or comfortable. Study those areas, or possibly attend a class or seminar. Remember the CSFA and CST examination is a broad knowledge based examination that does not test in one specific subject area or surgical specialty (effective Jan 1, 2019)."