Hepatitis B Virus Surface Antigen, Confirmation

Casandra

Casandra Test Code AR01805Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0020128CPT Code 87341

Hepatitis B Virus Surface Antigen, Confirmation

Also known as: HBSAG CONF

Clinical Use

Order Test

Use

This test is used to confirm the presence of Hepatitis B surface antigen (HBsAg) in a patient's serum or plasma, indicating an acute or chronic hepatitis B infection. It is crucial for clinical diagnosis and management of hepatitis B infection, as it confirms ongoing infection and assists in determining the appropriate therapeutic and preventive measures. This assay is not intended for blood donor screening or screening for human cells, tissues, and cellular- and tissue-based products (HCT/P).

Special Instructions

Order this assay only when a specimen is repeatedly reactive for hepatitis B surface antigen. It should not be used for blood donor screening or associated reentry protocols. Specimen should be collected in a serum separator tube, lavender (EDTA), or pink (K2EDTA) tube and transported refrigerated.

Limitations

The test is not suitable for blood donor screening, associated reentry protocols, or for screening human cells, tissues, and cellular- and tissue-based products (HCT/P). False positive and negative results can occur; therefore, results should be interpreted in the context of clinical evidence and repeat testing might be necessary to clarify diagnosis if a result is not supported clinically.

Test Details

FDA Approved

New York Approved

Methodology

Immunoassay (CLIA)

Biomarkers

Hepatitis B Surface Antigen

Protein

HBsAg • Other • Binary (Detected / Not Detected)

LOINC Codes

Result Codes

65633-0

Result Turnaround Time

1-3 days

Specimen

Serum

Volume

2.5 mL

Minimum Volume

1.5 mL

Container

ARUP standard transport tube

Collection Instructions

Collect in a serum separator tube. Also acceptable: Lavender (EDTA) or pink (K2EDTA). Separate serum or plasma from cells ASAP or within 2 hours of collection.