| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Hepatitis B Core Ab Total
MessageNCMC does not perform hepatitis testing on cadaver samples.
Test Code
HBCT - NCMC
CPT Codes
86704
Preferred Specimen
1 mL serum from SST or Red Top
Minimum Volume
0.5 mL
Instructions
Spin down within 24 hours of draw.
Specimen Stability
| Specimen Type | Temperature | Time |
| Serum SST | Refrigerated | 3 days |
| Serum SST – Separated | Frozen | 30 days |
| Red Top – Separated* | Refrigerated | 3 days |
| Red Top – Separated* | Frozen | 30 days |
*Centrifuge and aliquot into a plastic vial.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis, icterus, lipemia, Plasma
Methodology
Chemiluminometric
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same day
Reference Range
Nonreactive (reported as Nonreactive or Reactive)
Clinical Significance
IgM & IgG (total) Hepatitis B Core Antibodies appear at the onset of symptoms in acute hepatitis B and persist for life. The presence of anti-HBc indicates previous or ongoing infection with hepatitis B virus in an undefined time frame. Hep B Core IgM positivity indicates recent infection with hepatitis B virus (<6 mos).
HBV vaccination leads to development of HBs Ab but not to HBc Ab. Anti-Hbc IgG reactivity can persist for years after illness, and may even outlast anti-HBS.
HBV vaccination leads to development of HBs Ab but not to HBc Ab. Anti-Hbc IgG reactivity can persist for years after illness, and may even outlast anti-HBS.
Performing Laboratory
North Colorado Medical Center Laboratory
