HCV: diagnostic algorithm

Anti HCV+ve (Elisa-3)

High risk Low risk

HCV RNA (PCR) Riba on same or Elisa on second

sample sample

+ Indet –

F+ve

if ALT ?

PCR PCR check for

other causes

of CLD

+ - + -

Viremia Past Viremia F+ve

infection or past

infection

+

-

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