The term “liver function test” (LFT) has become established in health care, but the term is misleading as the blood analytes measured may not accurately reflect the extent or nature of liver disease (Box 1.1). Although a more appropriate term is “liver blood tests,” this term is not used in this chapter, as the old term of LFTs has become enshrined in medical use. In addition, other commonly measured analytes give useful guidance on the presence and extent of liver disease (such as full blood count, prothrombin count).
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