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Hepatitis A Ab Total W/Reflex IgM
MessageTest performed at York Hospital Laboratory.
Test Code
HAVT
Alias/See Also
Anti-HAV Total w/Reflex IgM
CPT Codes
86708
Includes
If Hepatitis A Total Antibodyis positive or borderline reactive, Hepatitis A IgM (confirmation testing) will be performed at an additional charge.
Preferred Specimen
0.2 mL serum collected in a small serum separator tube (in-house testing) AND 1 mL serum collected in a large serum separator tube (possible confirmation testing)
Minimum Volume
0.2 mL (in-house testing)
AND
0.5 mL (possible confirmation testing)
AND
0.5 mL (possible confirmation testing)
Other Acceptable Specimens
Serum collected in a no additive (red-top) tube, transferred to a plastic screw-cap vial
Instructions
One full serum separator tube (SST) is acceptable for all hepatitis confirmation testing.
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 8 hours
Refrigerated: 5 days
Frozen: Indefinately
Refrigerated: 5 days
Frozen: Indefinately
Methodology
Chemiluminescence
Setup Schedule
Tuesday, Friday
Report Available
4 Days
Reference Range
Negative
Clinical Significance
Anti-HAV IgM is detectable during the acute stage of illness, while anti-HAV IgG may be present for many years after recovery or following vaccination. The presence of anti-HAV (IgG or IgM) in human blood is indicative of past or present infection with hepatitis A (HAV) or vaccination against HAV. The test for total anti-HAV is primarily used to determine exposure to HAV either naturally or due to vaccination.
Additional Information
Confirmation Test: Hepatitis A IgM Antibody