## The Importance of Hepatitis B Surface Antigen Quantitative (HBsAg QN) Test
### Introduction
The Hepatitis B Surface Antigen Quantitative (HBsAg QN) test plays a crucial role in diagnosing and monitoring Hepatitis B virus (HBV) infection. By measuring the levels of HBsAg in the blood, this test provides insights into the activity and progression of HBV.
### Test Overview
The HBsAg QN test measures the concentration of HBsAg, a marker for HBV infection, in the blood. High levels of HBsAg indicate increased viral load and infectivity.
### Conditions and Diseases Detected
* Acute or Chronic Hepatitis B Infection
* Carrier Status
### Preparation Guidelines
No preparation is required, but disclose any medications you’re taking.
### Procedure
A simple blood draw collects a blood sample to be sent for analysis.
### Duration and Waiting Time
Blood draw: few minutes; Results: typically 1-3 days
### Additional Tests
* Liver function tests
* Hepatitis B virus DNA test
### Conclusion
The HBsAg QN test helps healthcare professionals diagnose and manage HBV infection, guiding treatment and assessing the risk of liver disease. If concerned about your liver or have had HBV exposure, consult your healthcare provider about the HBsAg QN test.
### Keywords
* Liver function test
* Hepatitis B test
* HBsAg quantitative
* Hepatitis B virus infection
* Liver damage
