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HERPESVIRUS 7 IgG, IFA
Test CodeHHV7 IgG
CPT Codes
86790
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemia • Icteric
Methodology
Immunofluorescence Assay (IFA)
Setup Schedule
Thursday All Shifts Report available: 2 Days
Reference Range
<1:320 titer
Interpretive Criteria
Interpretive Criteria
| <1:320 | No increase in HHV-7 IgG |
| 1:320 | Equivocal |
| >1:320 | Increased HHV-7 IgG |
Clinical Significance
HHV-7, like HHV-6, can cause exanthem subitum.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
