LFTs Demystified: A practical guide for APPs

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MASLD AI 09:05 PM

July 2025

In this GHAPP MASLD Community Network podcast, Jessica Crimaldi, NP, from the Cleveland Clinic, provides practical, real-world insights into interpreting liver function tests (LFTs) in the context of MASLD (metabolic dysfunction-associated steatotic liver disease) and MASH (steatohepatitis). Drawing on over a decade of experience in GI and hepatology, Jessica explains common ALT and AST elevation patterns that should prompt a diagnostic workup, even in asymptomatic patients. She reviews the hepatocellular vs. cholestatic patterns of injury, the value of the R-factor calculator in identifying the likely etiology of liver enzyme abnormalities, and how to differentiate MASH from other liver diseases such as PBC, viral hepatitis, or bile duct obstruction. The episode also addresses key non-liver labs like triglycerides, A1C, and cholesterol, and how they contribute to assessing metabolic risk. Finally, Jessica discusses the role of serial LFT monitoring in evaluating treatment response—highlighting what it means when liver enzyme levels fall and why "normal" LFTs don’t always indicate disease resolution. Whether you're a primary care provider or hepatology specialist, this podcast offers valuable guidance for early detection, risk stratification, and longitudinal monitoring of patients with MASH.

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