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Blood Borne Viruses and Sexual Health

Please complete the referral with the general referral criteria and the following additional criteria for:

Hepatitis B

Must have a positive HBsAg test and be over 18 years of age.

Hepatitis B sAg, HcAb, HBVcIgM and HBVSAb Titre are the initial screening tests to determine Hepatitis B status.

If Hepatitis B sAg is positive

  • Ultrasound of abdomen
  • Hepatitis B, HBeAg, HBeAb, HBV DNA Viral Load)
  • Full Blood Count
  • Urea and Electrolytes
  • Liver Function test
  • Cholesterol and Triglycerides
  • Coagulation Studies (including INR)
  • Iron Studies
  • Alpha Fetoprotein / Alpha 1 Antitrypsin
  • Hepatitis A IgG
  • Hepatitis C antibody
  • Hepatitis D antibody
  • HIV Antibody screen
  • Copper
  • Ceruloplasmin
  • Thyroid Function Tests
  • Anti-Nuclear Antibody Screen
  • Smooth muscle antibody

Hepatitis B referral pathway (PDF 934 kB)

Hepatitis C

Hepatitis C (HCV) antibody is the initial screening test. A positive test is a marker of exposure to the virus and not active infection. DO NOT refer at this point. Request ‘HCV-RNA PCR and GENOTYPE and viral load if positive’ on pathology request form.

If HCV-RNA PCR is positive refer with

  • Ultrasound of abdomen
  • Full Blood Count
  • Urea and Electrolytes
  • Blood Glucose (HbA1c)
  • Liver Function Test
  • Cholesterol and Triglycerides
  • Thyroid Function Test
  • Iron Studies
  • Coagulation profile (including INR)
  • Alpha Fetoprotein
  • Hepatitis A IgG
  • Hepatitis B (HBcAb, HBcIgM, HBsAb Titre, HBeAg, HBeAb, HBV DNA viral load)
  • HIV antibody screen
  • Alpha-1 Antitrypsin
  • Anti-Nuclear Antibodies, AMA and Anti-LKM
  • Ceruloplasmin and Copper Studies
  • Anti-smooth muscle antibody

Hepatitis C referral pathway (PDF 1026 kB)


  • HIV Antibody test result and Western blot
    • Contact BBV and SHS staff for clarification
    • Refer to BBV and SHS
  • CD4 count
  • HIV Viral load
  • Full Blood Count
  • Urea and Electrolytes
  • Liver Function Tests
  • Hepatitis and Sexually Transmitted Infection (STI) testing (see Sexual Health below)

Sexual Health

Referral to BBV and SHS for:

  • Routine Sexually Transmitted Infections (STI) screening & treatment
  • Post positive diagnosis follow-up

Recommended STI screening investigations include:

  • First Void PCR urine- Chlamydia and Gonorrhoea N
  • PCR rectal / Throat swab - Chlamydia and Gonorrhoea N (Gay MSM)
  • Throat and rectal swabs MCS (Gay MSM)
  • Discharge urethral/vaginal MCS (all)
  • Bloods: HIV Ab, Syphilis serology - RPR TPPA, HBVSAg, HBV cAb, HBVsAb Titre,HCV Ab, HAV,IGG
Last updated: 14 March 2022