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Test Code HIV HIV AG/AB, 4TH GEN, Reflex

Additional Codes

LAB23457

Collection Method

Venous draw

Minimum Volume

1ml (5ml for reflex testing)

Container

Purple (EDTA)

Acceptable Specimens

EDTA 3-4 mL whole blood tube

Reference or Target Ranges

Negative

Reportable Units

Result Report Report Comment
HIV ½ ANTIBODY NONREACTIVE Negative A negative result does not rule out HIV infection and should be evaluated with caution in patients with clinical symptoms and/or a history of high-risk behavior for HIV infection. Repeat testing in 1 to 2 months is recommended in these at-risk individuals.
ANTIGEN (HIV-1 p24) NONREACTIVE Negative None
HIV ½ ANTIBODY REACTIVE Reactive A REACTIVE result is a PRELIMINARY POSITIVE for the detection of HIV-1 and/or HIV-2 antibodies. A diagnosis of HIV infection must be based on supplemental test results.
ANTIGEN (HIV-1 p24) REACTIVE Reactive A REACTIVE result is a PRELIMINARY POSITIVE for the detection of HIV-1 p24 antigen. A reactive HIV-1 p24 antigen in the absence of reactivity for HIV-1 or HIV2 antibodies may indicate an acute HIV-1 infection.

 

Critical Value

Not defined for this assay

Reasons for Rejection

Hemolysis Threshold N/A
Icterus Threshold N/A
Lipemia Threshold N/A
Other Plasma samples, clotted, QNS, contaminated, improperly labeled, improper container

Specimen Stability

Ambient 2 days
Refrigerated (4°C to 8°C) 7 days
Frozen(-70°C to 0°C) 1 month

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time Stat within 1 hours of arrival in lab
Routine within 4 hours of arrival in lab
Stat Availabilty Yes
Performing Bench CPH Serology
Methodology/Method Description Alere Determine HIV 1/2 Ag/Ab Combo Screen

CPT Codes

87806

Last review/edit date

March 2024

Reflex Testing

Result Reflex testing
REACTIVE HIV ½ ANTIBODY LAB24170 HIV ½ AB DIFFERENTIATION will automatically reflex. This test is performed by Mayo Clinic Laboratories and is mapped to mayo test ID HVDIP.
NEGATIVE HIV ½ ANTIBODY with a REACTIVE HIV-1 p24 ANTIGEN LAB25680 HIV-1/HIV-2 Qualitative RNA HIV 1, RNA, NAAT, QUANT will automatically reflex. This test is performed by Mayo Clinic Laboratories and is mapped to mayo test ID HIVQN.