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HelpTest Code HBsAg HEPATITIS B SURFACE ANTIGEN
Patient Preparation
No special patient preparation required
Collection Method
Venous collection
Minimum Volume
1 mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Gold Top (serum separator) additive free
Acceptable Specimen(s)
Serum:
-Gold top SST
-Red Top
Plasma:
-Lt Green Top
-Lavender (LAV) top
Reference or Target Ranges
|
Nonreactive |
Value < 1.0 Index are considered nonreactive (negative) for hepatitis B surface antigen |
|
Reactive |
≥50 is reactive (positive) for hepatitis B surface antigen and no further testing is required.
Values between ≥1.0 Index and ≤50.0 Index are considered reactive (positive) for hepatitis B surface antigen. The test must be repeated in duplicate. |
Reportable Units
Index
Critical Value
Not defined for this assay
Reasons for Rejection
|
Hemolysis Threshold: |
500 mg/dL |
|
Icterus Threshold: |
40 mg/dL |
|
Lipemia Threshold: |
1000 mg/dL |
|
Other: |
QNS, contaminated, improperly labeled, improper specimen type |
Specimen Stability
|
Ambient |
24 Hours |
|
Refrigerated |
14 Days |
Performance Information
|
Days and Time Performed |
24/7 |
|
Expected Turn Around Time |
Stat: 1 Hour, Routine: 4 Hours |
|
Stat Availability |
Yes |
|
Performing Bench |
CRMC Chemistry |
|
Methodology/Method Description |
Atellica |
Methodology/Method Description
Atellica CH Analyzer
CPT Codes
87340