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Epic Code LAB1231685 HIV 1/2 Antibody and Antigen, Screening

Important Note

  • Ordering provider should manage consent.
  • Test cannot be ordered as an add-on.
  • HIV-1/HIV-2 antigen/antibody immunoassay (HIV-1/2 Ag/Ab) was performed using Roche Elecsys HIV Ag/Ab Assay.

Test Name Alias

HIV1-p24 | HIV 1/2 Ab Ag Screen | 4th (Fourth) Generation | 7101 | HIV 1 / HIV 2 Antibody and Antigen, Screen | LAB3617

Interface Order Alias

1231685

Clinical Information

Screening for infection with Human Immunodeficiency Virus

Panel Information

  • HIV 1/2 Antibody and Antigen, Screening

Possible Reflex:

  • HIV 1/2 Confirmation

Specimen Type

Blood

Collection Instructions

Specimen Collection: Blood

 

Container(s): 5.0 mL Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 5.0 mL

Minimum Volume to Collect: 2.0 mL

Neonate (NICU) Volume to Collect: at least 1 full microtainer

Capillary collect ok? Yes

Microtainer acceptable: Yes

Note:  Recent enhancements to the HIV assay may require a greater volume if result is Reactive due to the automatic repeat of results in duplicate.

Collection Instructions:

  • Gold tube: Gently invert 8 - 10 times to mix clot activator with blood.
  • Specimen should be processed within 2 hours – See Processing Instructions.

 

Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Serum
  • Centrifuge/Spin: Yes
  • Aliquot: Yes
  • Processing Instructions:
    • Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.

Transport Temperature: Refrigerate

Specimen Stability

Ambient: 8 hours

Refrigerate: 3 days (2 – 8ºC)

Frozen: aliquot serum for longer storage (-20º C)

Laboratory Retention: 3 days

Reflex Information

If HIV-1/2 Antibody is Reactive, then HIV 1/ HIV2 Ab Confirmation (lab orderable only) will be automatically ordered by the LIS if there is not a previous Reactive Geenius.  HIV-1 RNA, Quantitative, PCR is strongly recommended to be ordered by physician and re-collect for further evaluation if the confirmatory testing is negative.

Spectrum Health Laboratory Approved Reflex Guide

Test Frequency

Available 24 hours, with usual turn-around time 1 day.

Reference Range

Nonreactive

The performance of this assay has not been established for those under 2 years old.

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Methodology

Electrochemiluminescence 4th generation

CPT

87389, 87389, 87389, G0432

CDM Code

3028738902, 3028738902, 3028738902

LOINC

HIV-1 Discrimination: 7917-8

HIV-2 Discrimination: 7919-4

Mayo Access Code

Currently unavailable

Reviewed Date

3/18/2024

Last Updated Date

3/18/2024 - OEE Updates

Orderable Regions

Corewell Health Reference Laboratory West
Corewell Health Reference Laboratory East
Corewell Health Laboratory South