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1 - 2 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Serum or plasma
0.5 mL (Note: This volume does not allow for repeat testing.)
Red-top tube, gel-barrier tube, or lavender-top (EDTA) tube
If tube other than a gel-barrier tube is used, transfer separated serum or plasma to a plastic transport tube.
Non-EDTA plasma specimen; PST gel-barrier tube
Hepatitis B surface antibody (anti-HBs) level can be measured to determine if vaccination is needed. Following a vaccination regimen, anti-HBs can be measured to determine if protective immunity has been achieved.
Presence of anti-HBs is not an absolute indicator of resolved hepatitis infection nor of protection from future infection. Since there are different serologic subtypes of hepatitis B virus, it is possible (and has been reported) for a patient to have antibody to one surface antigen type and to be acutely infected with a virus of a different subtype. Thus, a patient may have coexisting HBsAg and anti-HBs. Transfused individuals or hemophiliacs receiving plasma components may give false-positive tests for antibody to hepatitis B surface antigen.
Immunochemiluminometric assay (ICMA)
• Inconsistent with immunity: 0.0−9.9 mIU/mL
• Consistent with immunity: >9.9 mIU/mL
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|006530||Hepatitis B Surf Ab Quant||16935-9||006531||Hepatitis B Surf Ab Quant||mIU/mL||16935-9|
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