HBsAg (Medx) One Step Hepatitis B Surface Antigen Rapid Test 25's

Product Description:

The HBsAg (Medx) One Step Hepatitis B Surface Antigen Rapid Test is a diagnostic device used to detect the presence of Hepatitis B Surface Antigen (HBsAg) in a person's blood sample. This test is typically used to screen individuals for Hepatitis B infection and provide quick results within 15 to 20 minutes. It is a rapid, easy-to-use test with high sensitivity and specificity. The test comes in a pack of 25 individual test devices, making it suitable for multiple uses in medical clinics, diagnostic labs, or other healthcare settings.

The test involves the use of a dipstick or cassette format, where a small blood sample (usually a fingerstick or venous blood) is applied to the test device, and the results are interpreted based on the appearance of specific lines. A positive result indicates the presence of HBsAg, suggesting Hepatitis B infection.

Indications:

The HBsAg (Medx) One Step Hepatitis B Surface Antigen Rapid Test is indicated for the following:

• Screening for Hepatitis B Infection: It is used to identify individuals who are infected with Hepatitis B virus (HBV), especially in areas where the disease is prevalent.

• Pre-Surgical Screening: It can be used to screen patients before surgery to prevent the spread of Hepatitis B during medical procedures.

• Pregnancy Screening: The test is sometimes used to screen pregnant women for Hepatitis B to prevent vertical transmission to the baby.

• Routine Health Checkups: Useful in routine screenings for individuals at risk for Hepatitis B, such as healthcare workers, individuals with multiple sexual partners, intravenous drug users, or people living in high-risk areas.

Dosages:

As a diagnostic test, the HBsAg Rapid Test does not have a dosage. It is used in the following manner:

• Test Procedure: The test involves applying a small blood sample (usually 20 µL) to the sample pad of the test device. The blood sample may be obtained from a fingertip (capillary blood) or vein (venous blood) depending on the test type.

• Test Result Interpretation: The test provides results within 15-20 minutes. Do not interpret the results after 30 minutes as the test may become invalid.

Steps to Use:

1. Collect the sample: Use a clean lancet to obtain a small blood sample or collect venous blood as per the guidelines.

2. Apply the sample: Place the blood on the test device as instructed in the product manual.

3. Wait for results: After 15-20 minutes, check for the appearance of lines to interpret the result.

Side Effects:

Since the HBsAg Rapid Test is a non-invasive diagnostic tool, side effects are generally rare. However, there are a few possible concerns:

• Discomfort from Blood Collection: The process of obtaining the blood sample, particularly with a fingerstick or venous collection, may cause mild discomfort, bruising, or bleeding at the collection site.

• False Results: There is a small chance of false-negative or false-positive results if the test is not used properly, or if the sample is of poor quality. For example, insufficient blood volume, or contamination of the sample, can lead to inaccurate results.

• Stress or Anxiety: A positive result may cause emotional distress or anxiety while awaiting further medical evaluation and confirmation.

Contraindications:

• Not for Use in Symptomatic Patients: If a patient is experiencing acute symptoms of Hepatitis B, such as jaundice, abdominal pain, or fatigue, this test is not meant to replace a comprehensive clinical evaluation. A blood test by a healthcare provider (such as an ELISA or PCR test) should be used for further confirmation.

• Not a Confirmatory Test: The HBsAg Rapid Test is a screening tool only, and a positive result should be followed by additional diagnostic tests (e.g., ELISA, PCR, or Hepatitis B virus DNA test) to confirm the diagnosis of Hepatitis B infection.

• Inadequate Sample Volume: The test should not be used if the blood sample is too small or insufficient. Always ensure the correct sample volume is collected as per the manufacturer’s instructions.

• Pregnancy and Infants: The test is generally safe for use during pregnancy and in infants, but positive results should be followed by a confirmatory test to prevent misdiagnosis and ensure appropriate management.

Additional Notes:

• Storage: The test devices should be stored in a cool, dry place and protected from moisture to ensure optimal performance. They should not be stored in a freezer.

• Result Interpretation:

  • Positive Result: If two lines appear (one in the control region and one in the test region), it indicates that HBsAg is present in the blood, suggesting Hepatitis B infection.

  • Negative Result: If only one line appears in the control region, the result is negative.

  • Invalid Result: If no line appears in the control region or the test line, the test is considered invalid, and a new test should be performed.

• Limitations: The test is not recommended for use in individuals who are already diagnosed with Hepatitis B and are undergoing treatment. It should also not be used to detect Hepatitis C or other types of hepatitis infections.

Conclusion:

The HBsAg (Medx) One Step Hepatitis B Surface Antigen Rapid Test is a fast, reliable, and easy-to-use tool for screening individuals for Hepatitis B infection. With a high level of sensitivity, this test is useful for early detection, especially in areas where Hepatitis B is prevalent. While it is a screening test and not a confirmatory test, it provides an important first step in identifying individuals who may require further diagnostic evaluation and management for Hepatitis B.