Serological testing of a patient shows HBsAg, Ig Manti HBc and HBeAg positive. The patient has:
**Core Concept**
The presence of HBsAg, IgM anti-HBc, and HBeAg indicates acute hepatitis B infection. HBsAg is the surface antigen of the hepatitis B virus (HBV), while IgM anti-HBc is an indicator of a recent or acute infection. HBeAg is a marker of viral replication and high infectivity.
**Why the Correct Answer is Right**
In acute hepatitis B, the immune system produces IgM antibodies against the core antigen (HBc) in response to the viral infection. The presence of HBeAg signifies that the virus is actively replicating, making the patient highly infectious. The combination of HBsAg, IgM anti-HBc, and HBeAg is a classic serological profile for acute hepatitis B infection.
**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect because it does not match the serological profile for acute hepatitis B. Typically, IgG anti-HBc would be present in chronic infections.
**Option B:**
This option is incorrect because it suggests a chronic infection, which would be characterized by the presence of IgG anti-HBc and possibly anti-HBe.
**Option C:**
This option is incorrect because it implies a resolved infection, which would be marked by the absence of HBsAg and the presence of anti-HBs (antibody to HBsAg).
**Clinical Pearl / High-Yield Fact**
In acute hepatitis B, patients are highly infectious, and prompt antiviral treatment may be necessary to prevent progression to chronic infection.
**Correct Answer:**
C. Chronic hepatitis B.
Correct Answer: C. Chronic hepatitis B.