CEACAM5 and cancer: Pertinent labs included a carcinoembryonic antigen (CEA) level of 3.0 ng/mL (reference: 0.0-2.5 ng/mL), cancer antigen 19-9 (CA19-9) level of 23 U/mL (reference: <34U/mL), and lipase 96 U/L (reference: 73-393 U/L).