Episode 158

Understanding the Intricacies of LFTs in Clinical Practice with Dr Chanika Ariyawansa

In this episode of The Good GP, hosts Dr Sean Stevens and Dr Tim Koh are joined by Dr Chanika Ariyawansa, a WA-trained chemical pathologist with additional training in genetic pathology. Dr Ariyawansa, who holds significant roles in the Australian Association of Clinical Biochemistry, delves into the nuances of liver function tests (LFTs), exploring patterns and implications of abnormal results.

Firstly, with an examination of the prevalence and general patterns of abnormal LFTs, highlighting the commonality of mild and transient abnormalities. Dr Ariyawansa clarifies common misconceptions regarding LFTs, emphasising that not all markers in the standard LFT panel are liver-specific or directly assess liver function.

They also explain in detail individual LFT components such as bilirubin, ALP, GGT, AST, and ALT. The guest expert also categorises potential abnormalities into hepatocellular, cholestatic, mixed, and non-hepatic causes, with practical insights on each. Special attention is given to non-hepatic causes, analytical causes, and how these might influence LFT interpretation.


Dr Ariyawansa's expertise shines as she discusses managing patient anxiety around abnormal LFT results and the practical aspects of educating patients about their liver health. She stresses the utility of resources such as the Pathology Tests Explained website for patient education.


Wrapping up with an engaging Q&A session addressing specific scenarios like non-drinking patients with isolated raised GGT and the impact of statins on LFTs. She answers with clinical relevance, offering listeners practical strategies for understanding and communicating complex test results in their practice.


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About the Podcast

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The Good GP
The Good GP, the education podcast for busy GPs

About your hosts

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Tim Koh

Dr Tim Koh is a Perth-based GP with over 20 years of experience and a strong focus on GP education and evidence-based practice. He provides practical insights and advice on key topics in primary care.
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Krystyna de Lange

Dr Krystyna de Lange is a GP with nine years of experience, specialising in Aboriginal and Torres Strait Islander health, women’s health, and chronic disease management. She delivers practical insights and fosters engaging discussions on essential health topics.
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Sean Stevens

Dr Sean Stevens is a GP with 27 years of experience, recognised for his expertise in medical education and innovation. He has contributed to over 60 episodes, sharing valuable insights to promote quality care in general practice.