Hepatitis B Testing Singapore | Shim Clinic

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There are a variety of tests for Hepatitis B.

Abbreviation Name Presence in blood indicates
HBsAg Hepatitis B Surface Antigen
(Australia antigen)
HBsAb Hepatitis B Surface Antibody Immunity
HBeAg Hepatitis B Envelope Antigen Infectivity/Activity
HBeAb Hepatitis B Envelope Antibody Favourable prognosis
HBcAg Hepatitis B Core Antigen Not detectable in blood
Detectable in liver biopsy
HBcAb Hepatitis B Core Antibody HBsAb presence
due to infection

Blood testing is available for all the above except HBcAg






Serologic markers

The order of appearance of markers in acute infections is – HBsAg, HBeAg, antiHBc IgM, antiHBe, antiHBc IgG, antiHBs (Annex VI).

The significance of HBs antigen and antibody markers is shown below:

Marker Clinical Significance

HBsAg Presence of HBV
HBeAg Virus replication, High infectivity
Anti-HBc IgM Acute infection
Anti-HBc IgG Late acute or chronic infection
Anti-HBe Loss of replication, low infectivity
Anti-HBs Protective antibody



Hepatitis B Testing
HAG Hepatitis Bs Antigen (HBsAg) 1 6ml Plain $10.2
HAB Hepatitis Bs Antibody (HBsAb) 1 6ml Plain $10.2
HEG Hepatitis Be Antigen (HBeAg) 1 6ml Plain $37.1
HEA Hepatitis Be Antibody (HBeAb) 1 6ml Plain $37.5
HCG Hepatitis B Core Total IgG Antibody 1 6ml Plain $36.8

TaT* – Turnaround Time is in working days.

Sexual risk (of HIV/STD/pregnancy), and what you can do before and after exposure.
Timeline HIV STD Pregnancy
Before exposure
Abstain from sex, Be faithful, or Condom use
Circumcision (males only)
Contraception (females only)
HIV PrEP (pre-exposure prophylaxis) - Stop HIV infection before exposure STD vaccine: - Hepatitis vaccine - HPV vaccine
STD / HIV exposure
Unsafe sex / unprotected sex: No condom / Condom broke / Condom slip
0-72 hours HIV PEP (post-exposure prophylaxis) - Stop HIV infection after exposure STD testing * - Screening test - to look for asymptomatic infections - from previous exposures Emergency contraception with the morning-after pill (females only)
2 weeks HIV DNA Test
1 month HIV 4th Generation Test - SD Bioline HIV Ag/Ab Combo - Fingerprick blood sampling. - 20 minutes to results
3 months HIV 3rd Generation Test - OraQuick® HIV-1/2 Antibody - Oral fluid or - Fingerprick blood sampling. - 20 minutes to results STD testing * - Full & comprehensive - diagnostic test - to look for current infections
Watch for HIV Symptoms STD Symptoms
If infected HIV Treatment STD Treatment Abortion
* Males: Do not urinate for at least 4 hours before arriving. * Females: testing is more accurate when you are not menstruating.


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