HEPATITIS B SURFACE ANTIGEN (DIALYSIS ONLY)

Message

Note: This test is only available to screen dialysis patients for Hep B prior to dialysis.

Test Code

HBAG

CPT Codes
87340

Preferred Specimen

GOLD Tube (SST)

Patient Preparation
None

Minimum Volume

1 mL

Other Acceptable Specimens

Green Tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of serum or plasma from red cells.

Transport Container

GOLD Tube

Transport Temperature

Room temperature

Specimen Stability

2-8°C up to 7 days

Methodology
Direct Chemiluminescence

Setup Schedule

DAILY, as received

Report Available

STAT: <60 minutes
Routine: <4 hours

Reference Range

Male/Female All Ages: Normal: NONREACTIVE Positive (Reported as REACTIVE, REACTIVE)

Clinical Significance

A protein on the surface of hepatitis B virus; it can be detected in high levels in serum during acute or chronic hepatitis B virus infection. The presence of HBsAg indicates that the person is infectious.

All positive results for this test are automatically confirmed before reporting.

Performing Laboratory
Mount Sinai Hospital

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.