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Part 5 Final. Laboratory Work-Up. Algorithm for patients with jaundice. Tumor Markers. CA 19-9. 297 U/mL. Patients with pancreatic carcinoma, 75-85% have elevated CA 19-9 levels . CA 19-9 value of greater than 100 U/mL is highly specific for malignancy, usually pancreatic. CEA.
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CA 19-9 297 U/mL • Patients with pancreatic carcinoma, 75-85% have elevated CA 19-9 levels. CA 19-9 value of greater than 100 U/mL is highly specific for malignancy, usually pancreatic. CEA • The reference range is less than or equal to 2.5 mg/mL. • Only 40-45% of patients with pancreatic carcinoma have elevated CEA levels.