Test Name

HIV Ag/Ab Screen 4th Generation Screen

Specimen Type & Acceptability

Serum
7 days refrigerated

General Use

Screening method to aid in the diagnosis of HIV. Screening test includes p24 antigen and antibodies to human immunodeficiency viruses type 1 (including group “O”) and type 2.

CPT Code(s)

87389

Special Instructions

Let clot for 10-20 minutes. After the sample is fully clotted, centrifuge the sample. Verify complete separation of cells and serum and refrigerate.

Note: If positive, additional testing will be required to ensure the CDC algorithm is followed.

Container/Tube Type

Volume

1 mL Min. vol. = 600 ul

Suggested Tube Types

Description

Typical Volume

Gold Top Serum Separator Tube (SST)

⋜ 5 mL

Tiger Top Serum Separator Tube (SST)
^For larger volume tests

> 5 mL

Red Top Tube (No additive)

⋜ 5 mL

EDTA Whole Blood

3 mL

3.2 % Sodium Citrate Whole Blood

2.7 mL

Lithium Heparin Plasma Separator Tube

⋜ 5 mL