UW HSIP- Subsequent HepB Titer

1 min. readlast update: 10.21.2025
Please complete a post-vaccination Quantitative Hepatitis B Surface Antibody (HBsAb-Qn) Titer. A titer is a lab test requiring a blood draw to determine immunity status. An accredited healthcare provider order's must be obtained to get the titer. 
 
If you already have completed a Hep B Surface Antibody titer that is AFTER your completed HepB vaccine series and it is reactive/positive, you do not need to complete a new titer. Please make sure your lab report meets HSIP's Lab Result Documentation requirements and submit it for approval.  
If you already have completed a HepB Surface Antibody titer that is AFTER your completed HepB vaccine series and it is non-reactive/negative, please submit the full lab report for approval. Once approved, a subsequent HepB requirement tag will be created to inform you of your next steps for the HepB requirement.   
If you have questions, please contact HSIP at myshots@uw.edu
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