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HIV 1&2 combo Antibody + p24 Antigen - 4th generation assay

Important Note

Use only for patient’s with an unknown HIV status.

Additional Codes

Epic# -

LAB5635

 

Cerner name(s):

  • HIV 1/2 Ab plus p24 Ag

Performing Lab(s)

Memorial-Belleville only

Methodology

Sandwich immunoassay.

Specimen Requirement (s)

Specimen Type: serum

Container/Tube:   SST (gold or marble) or plain red top

Specimen Volume:   2 mL

Specimen Minimum Volume: 1 mL of serum

 

Collection Instructions: NA

Lab Instruction: Serum must be separated from cells within 2 hours after collection.

Unacceptable Conditions

  • Grossly hemolyzed specimens will be redrawn.

Day(s)/Shift(s) Test Set Up and Turnaround Time

Sunday through Saturday

Hours: 24 hours

 

Turnaround Time:

STAT: 3 hours

Routine: less than 24 hours from receipt.

Transport and Stability

Transport temperature: Ambient to lab

 

Analyte Stability: 

Ambient: 24 hours

Refrigerated: 14 days

Frozen: NA

Reference Values

  • Nonreactive
  • Reactive

 

CPT/LOINC Codes

87389

Interpretive Data

  • Use to determine HIV status.
  • Negative (non-reactive) results indicate no presence of HIV 1, HIV 1 group O, HIV 2 antibodies and/or p24 antigen.
  • Repeatedly reactive results will be sent for HIV Diff at Barnes-Jewish.