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22
THE DIAGNOSTIC PROCESS3
Fig. 3.1 A guide to using the ‘overview of assessment’.
Evidence of chronic liver disease?
Full clinical assessment + LFTs, FBC, U+E, coagulation screen
1 See Further assessment ofchronic liver disease (p. 181)
Fever / rigors / RUQ pain?
Dilated bile ducts on USS?Seekunderlyingcause
Yes
No
Normal liver enzymes, PT, albumin?2 Likely haemolysis or Gilbert’s syndromeYes
No
Evidence of cholestasis?3
Suspect acute cholangitisYes
Extrahepatic cholestasisYes
ALT >500 U/L, ↑PT or featuresof encephalopathy?4 Acute viral/autoimmune hepatitis or
toxic/ischaemic liver injuryYes
No
No
Yes
No
No