What are alkaline phosphatase (ALP) level findings suggestive of intrahepatic biliary obstruction?

Updated: Oct 16, 2019
  • Author: Jennifer Lynn Bonheur, MD; Chief Editor: Vinay Kumar Kapoor, MBBS, MS, FRCS, FAMS  more...
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ALP levels are usually elevated, and they often are less than 3 times the upper limit of the normal reference range. However, 5-10% of patients have a greater degree of elevation.

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