Hepatitis B Test - Lab in the Box

The Lab in the Box Hepatitis B Test detects the presence of the HBV virus, enabling early diagnosis and preventing serious liver complications. Ideal for post-exposure checkups or assessing vaccination status.

🔹 Why test?

- 90% of adults eliminate the virus naturally, but 10% develop a chronic form

- Early diagnosis prevents:

✓ Liver cirrhosis

✓ Liver cancer

✓ Transmission to others

🔹 Advantages:

- Collection at home (simple finger prick - 400 μL)

- Results in ** 24-48h** (_*at is 5 days in peaks_)

- Medical monitoring included if reactive

Test Details

Parameter	Relevance
Test Type	Detection of HBsAg antigen (marker of active infection)
Immunological Window	4-12 weeks post-exposure
Precision	>99% (equivalent to laboratory tests)

Complete Kit Includes:

✔️ Collection tube (yellow cap)

✔️ Sterile lancets + painless device

✔️ Illustrated guide + explanatory videos

✔️ Prepaid shipping

✔️ Confidential digital results

Collection Instructions:

- No fasting is necessary

- Collect before 11:30 am (Monday to Thursday)

- Ship same day

Suitable for:

✅ Preventive check-up (especially if not vaccinated)

✅ Risk situations:

- Unprotected sexual intercourse

- Sharing needles or sharp objects

- Pregnant women (prevent vertical transmission)

- Symptoms such as:

• Jaundice (yellowing of the skin/eyes)

• Persistent fatigue

• Upper right abdominal pain

Interpretation of Results

-Negative:

- Consider vaccination if not immunized (95% efficacy)

- Positive:

✓ Referral to a hepatologist

✓ Complementary tests (viral load, liver function)

✓ Free treatment through the SUS (if necessary)

Example:

Positive HBsAg result → Start of liver monitoring + possible antiviral therapy.

Important Notices:

⚠️ Vaccine available: 3 doses provide lifelong protection in 95% of cases

⚠️ Chronic form: Requires regular medical monitoring, even without symptoms

Confidentiality guaranteed – your data is protected by law.

Tip: Combine with the Hepatitis C Test for a complete evaluation of viral hepatitis.

Did you know?

Portugal offers free vaccination against Hepatitis B in the National Vaccination Plan for:

- Newborns

- Health professionals

- Non-immunized people at risk