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HIV 1&2, Screen, Reflex to Differentiation
MessageMust collect in a dedicated tube. If ordered with other testing, please submit 2 tubes to lab.
Test Code
HIV 1&2 Screen, Reflex to Diff - NCMC
CPT Codes
87389
Includes
HIV 1/2 Screen
Reflexes to HIV 1&2 Antibody Differentiation, if positive
Reflexes to HIV 1&2 Antibody Differentiation, if positive
Preferred Specimen
2.0 mL serum from Serum Gel or Red Top
Minimum Volume
1.5 mL
Other Acceptable Specimens
2.0 mL plasma from LiHep
Instructions
Spin down within 24 hours of draw.
Specimen Stability
| Specimen Type | Temperature | Time |
| Serum SST | Refrigerated | 7 days |
| Serum SST – Separated | Frozen | 30 days |
| Red Top – Separated* | Refrigerated | 7 days |
| Red Top – Separated* | Frozen | 30 days |
*Centrifuge and aliquot into a plastic vial.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
Two wash antigen/antibody sandwich immunoassay
Reflexes to immunochromatographic antibody differentiation
Setup Schedule
Monday thrugh Sunday; Continuously
Report Available
Same day
Reference Range
If reactive the result will be confirmed by HIV 1 & 2 antibody differentiation.
If differentiation result is Negative, untypable, or Indeterminate, it is recommended that the provider order test HIV-1 RNA, Qualitative, PCR for confirmation/further testing.
If differentiation result is Negative, untypable, or Indeterminate, it is recommended that the provider order test HIV-1 RNA, Qualitative, PCR for confirmation/further testing.
Performing Laboratory
North Colorado Medical Center Laboratory
