What should you know about UniJect hepatitis B?

UniJect is a prefilled, single-use device designed to deliver an injection. It does not describe a separate type of hepatitis B or tell you whether someone is infected. Hepatitis B can be short-term or persist in the body and may affect the liver without obvious symptoms. Fatigue, nausea, abdominal discomfort, yellowing of the skin or eyes, and dark urine can occur, but symptoms alone cannot confirm infection. Blood tests distinguish current infection, previous exposure and immunity from vaccination. A liver function test may help assess liver irritation, but it does not replace hepatitis B-specific testing.

Ask which vaccine or test is being offered, whether the device is intended for you, and what schedule applies to your age and exposure history. Hepatitis B vaccination helps prevent infection and may be recommended before or after certain exposures. Do not share razors, toothbrushes or injection equipment, and use barrier protection until a clinician explains your status. If infection is suspected, arrange testing and discuss follow-up for liver health with a clinician.

Seek urgent care for severe weakness, confusion, repeated vomiting, intense abdominal pain, bleeding, or yellowing with marked illness. Arrange prompt medical review after a possible blood or body-fluid exposure, during pregnancy, or when dark urine and jaundice appear. A vaccine visit is also a chance to report a previous serious reaction to an injection and check whether another dose or test is needed.

Is this visit for hepatitis B vaccination, testing or both? Which blood tests show infection or immunity? Do I need a liver function test, further follow-up, or advice for household and sexual contacts?