A nurse has been found to be seropositive for both HbsAg and HbeAg. She is suffering from:
**Core Concept**
The nurse's seropositivity for both HbsAg and HbeAg indicates active hepatitis B virus (HBV) infection, with the presence of the e antigen (HbeAg) suggesting high viral replication and infectivity.
**Why the Correct Answer is Right**
The presence of HbsAg indicates the presence of hepatitis B surface antigen, which is a marker of HBV infection. HbeAg, on the other hand, is a marker of active viral replication and high infectivity. This combination suggests that the nurse is in the "infectious window" of HBV infection, where she is highly contagious and can transmit the virus to others. The high viral replication is also associated with increased liver inflammation and damage.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the serological markers mentioned in the question.
**Option B:** HbsAg positivity alone does not necessarily indicate active viral replication, as it can also be present in individuals with chronic infection or resolved infection.
**Option C:** HbeAg positivity is not a marker of chronic infection, but rather of active viral replication and high infectivity.
**Clinical Pearl / High-Yield Fact**
In individuals with HBV infection, the presence of HbeAg is associated with a higher risk of transmission to others, and the presence of both HbsAg and HbeAg is a key indicator of active viral replication and high infectivity.
**Correct Answer:** C. Acute Hepatitis B.