UoN MBChB systemic pathology end-of-year and CAT questions, each re-verified from first principles against standard textbook knowledge. Wrong answer keys have been corrected, OCR and merged options cleaned up, and every item carries a real examiner-level explanation with a verification status and a confidence rating.
QA pass: 19 answer keys were changed from the original paper where they were wrong. Items marked Medium/Low confidence are genuinely ambiguous or course-specific: cross-check those against your own notes rather than trusting the key blindly.