Serum pre-S2 protein

The pre-S2 protein hepatitis B virus (HBV) coat protein includes HBsAg, pre-S1 and pre-S23 components, of which pre-S1 may be involved in the transport and secretion of HBsAg, and pre-S2 may mediate HBV adhesion to human hepatocytes. An anti-PreS2 antibody in serum was used as a method for evaluating the preventive effect. Basic Information Specialist classification: Infectious disease examination and classification: immunological examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: normal. Positive: Infected with hepatitis B. Tips: Be careful not to take the medicine before the examination. You must not drink alcohol the day before. You can't eat before the test. The blood test requires fasting. The fasting time is usually 8 to 12 hours. Normal value The pre-S2 protein is negative. Clinical significance Abnormal results: pre-S2 protein positive. Need to check the crowd: hepatitis B patients. Positive result may be disease: hepatitis B precautions Taboo before inspection: 1. Be careful not to take the drug before the test, because some drugs will increase the burden on the liver, causing temporary damage to the liver function, which will lead to the accuracy of the liver function test results. 2. Pay attention to ensure adequate sleep before exercise, do not exercise vigorously, which may cause elevated transaminase, thus affecting the test results. 3. You must not drink alcohol the day before. Drinking alcohol will cause an increase in transaminase and affect the test results. Taboo when checking: 1. Can not eat before the examination, blood test requires fasting, fasting time is generally 8 to 12 hours. 2. The venous blood taken should be fresh and tested immediately. Inspection process The patient's serum was taken and the serum pre-S2 protein was detected by ELISA. Not suitable for the crowd Not suitable for the crowd: no. Adverse reactions and risks There are no related complications and hazards.

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