HBV Surface Antigen (HBsAg) Quantitative, Monitoring

General Information

Lab Name

HBV Surface Antigen (HBsAg) Quantitative, Monitoring

Lab Code

HBSAGQ

Epic Name

HBV Surface Antigen (HBsAg) Quantitative, Monitoring

Description

For monitoring the progression of chronic hepatitis B and their response to antiviral therapy. This Quantitative detection of Hepatitis B virus Surface Antigen (HBSAg) in human sera incorporates the modified FDA approved ARCHITECT HBsAg test one-step chemiluminescent microparticle immunoassay (CMIA).

The performance characteristics of the test were determined by the University of Washington Department of Laboratory Medicine and Pathology. The modified version has not been cleared or approved by the US Food and Drug Administration.

Note: This test should only be ordered in individuals with chronic Hepatitis B, confirmed positive for HBV Surface Antigen (HBSAg).

For initial HBV diagnosis, see Hepatitis B Surface Antigen (HBsAg) with reflex to PCR for REACTIVE [HBSAG] or Hepatitis B Surface Antigen without PCR reflex for REACTIVE [HBSAGX].

Synonyms

HBSAG, HBV

Components

Code Name
HBSAQR HBV Surface Antigen Quantitative Result
HBSAQI HBV Surface Antigen Quantitative Interpretation

Interpretation

Method

Chemiluminescence Immunoassay

Reference Range

See individual components

Guidelines

Ordering & Collection

Specimen Type

Peripheral Blood

Collection

Preferred: 5 mL blood in GOLD SST tube

Also acceptable: 5 mL blood in ORANGE RST or RED TOP.

Quantity

requested: 1.0 mL serum
minimum: 0.5 mL serum

Processing

GOLD SST tube: Specimens may be stored on or off the clot, red blood cells, or separator gel for up to 3 days at room temperature (15-30°C) or up to 7 days at 2-8°C. If testing will be delayed more than 3 days for specimens stored at room temperature or more than 7 days for specimens stored at 2-8°C, remove serum from the clot, red blood cells, or separator gel and store at -20°C or colder. Avoid more than three freeze/thaw cycles.

Unacceptable samples: Cord blood, neonatal specimens, cadaver specimens, heat-inactivated specimens, or body fluids such as saliva, urine, amniotic fluid, or pleural fluid. Specimens with obvious microbial contamination or that are grossly hemolyzed.

Performance

LIS Dept Code

Central Lab Virology (RVIR)

Performing Location(s)

CL Division of Infectious Disease Diagnostics (DIDD) - Virology

1601 Lind Ave SW
Renton, WA 98057

Phone: 206-685-6656 option 8
Hours of Operation:
Mon–Fri: 7:00 AM–7:00 PM
Sat: 9:00 AM–4:00 PM

Frequency

Performed twice a week.

Available STAT?

No

Billing & Coding

CPT codes

87467

LOINC

Interfaced Order Code

UOW6628