What is the prevention for Hepatitis B?

Appeared in: UP CHO - 2018

Explanation

The HBsAg vaccine is the primary method for preventing Hepatitis B infection.
It contains Hepatitis B surface antigen (HBsAg), a component of the virus, which stimulates the body to produce its own protective antibodies.
This process is called active immunization and provides long-term protection against the disease.

Option B: The BCG (Bacillus Calmette-Guérin) vaccine is used to prevent tuberculosis (TB), not Hepatitis B.
Option C: The DPT vaccine protects against three different diseases: Diphtheria, Pertussis (whooping cough), and Tetanus.
Option D: HBIG (Hepatitis B Immune Globulin) provides passive immunity, not active prevention. It contains ready-made antibodies and is used for immediate, short-term protection after a known or likely exposure to the virus (post-exposure prophylaxis).

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Hepatitis B Prevention and Vaccine Types as background academic context rather than a clinical decision trigger.
Hepatitis B vaccination is a critical patient-safety measure, especially for healthcare workers who are at high risk of occupational exposure through needlestick injuries.
Administering the first dose of the Hepatitis B vaccine to newborns within 24 hours of birth is a key public health strategy to prevent mother-to-child transmission.
What if? If a vaccinated nurse sustains a needlestick injury from an HBV-positive patient, post-exposure protocol still requires immediate action. The nurse's anti-HBs antibody titers would be checked. If titers are low (less than 10 mIU/mL), a booster dose of the vaccine and possibly HBIG would be administered.

How to Approach the Question

First, identify the core subject of the question, which is the 'prevention for Hepatitis B'.
Next, analyze the options provided. All options are types of vaccines or immunoglobulins.
Recall the specific purpose of each vaccine. Match the disease (Hepatitis B) with its corresponding vaccine.
Differentiate between vaccines for active, long-term prevention (HBsAg vaccine) and immunoglobulins for passive, short-term post-exposure protection (HBIG).
Eliminate the vaccines for other diseases (BCG for TB, DPT for Diphtheria/Pertussis/Tetanus) to arrive at the correct answer.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart B (pp 202-403 of 604) pp. 67-69, 68-70

E6 Medicine Harrison 22e Part 2 p. 566-568

Practise the full UP CHO - 2018

Attempt every question from this paper in a timed mock, then review the full solution for each one.