Following are the contraindications of CAT Scan: - Pregnant - History of reaction to contrast agents - Renal disease Reference: https://www.aafp.org/afp/2013/0901/p312.html#:~:text=Possible%20contraindications%20for%20using%20intravenous,or%20acutely%20worsening%20renal%20disease. Image via: https://radiopaedia.org/cases/acute-appendicitis-38