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Test Code N.HEPBSAG HEPATITIS B SURFACE ANTIGEN

Additional Codes

N.HBSAG

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Serum or Plasma

Container: SST or Green top Lithium heparin

Specimen Collection: 1 mL (minimum 0.5 mL)

  1. Allow specimen to clot completely if a serum tube (SST) was used for the draw.
  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 8 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube and cap immediately.
  3. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn from i.e. GREEN.

Alternate Specimens: Red top Serum tube, K2EDTA plasma

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 6 days poured off

Specimen Rejection

1. Grossly hemolyzed specimens

2. Grossly lipemic specimens

3.  Under-filled Tube

4.  Unlabeled Specimen

5.  Specimen exceeds stability requirements

Maximum Laboratory Time

24 - 48 hours

Reference Ranges

Hepatitis B Surface Antigen               S/CO                      
            Nonreactive

 

 

 

 

 

 

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

87340