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February 26, 1968

Liver Function Tests and Esophageal Hemorrhage

Author Affiliations

Kentfield, Calif

JAMA. 1968;203(9):810. doi:10.1001/jama.1968.03140090194027

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To the Editor:—  In "Sulfobromophthalein" (202:979, 1967) Dr. Charm states that "normal results from a sodium sulfobromophthalein test (BSP) effectively rule out varices [esophageal] as a source of bleeding [upper gastrointestinal]." The BSP and other liver function tests, however, may be normal in hemorrhage from esophageal varices secondary to extrahepatic portal venous block, eg, acquired portal venous thrombosis.