ALP

A liver and bone enzyme.

ALP: short frosted glass cylinder on a dark surface
Image generated with AI.

A typical adult ALP range is about 40–130 U/L. A high ALP comes from the liver and bile ducts or from bone; GGT helps tell the source apart.

FindingLikely source
High ALP + high GGTLiver / bile ducts
High ALP + normal GGTBone (healing fracture, vitamin D deficiency, Paget disease)
Children, teenagers, pregnancyPhysiologic rise (growth, placenta)
Sources
  • Kwo PY et al., ACG Clinical Guideline: Evaluation of Abnormal Liver Chemistries, Am J Gastroenterol 2017

General information only; not diagnosis or treatment. Review your results with your clinician.