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Test Code IKNOW ImmuKnow

Important Note

Critical ambient, send whole blood in original tube.  Specimen cannot be collected after 1300 on Friday or on a weekend.

Clinical Indications

ImmuKnow is an immune cell function assay that detects
cell-mediated immunity in an immunosuppressed population. The assay
detects cell mediated immunity by measuring the concentration of
ATP from CD4 cells following stimulation.

Additional Test Codes

Epic Order Name: IMMUKNOW IMMUNE CEL FUNCTION 9000 (aka
IKNOW)
Sunquest Order Code: IKNOW
Epic Px Code: LAB2859

Specimen Collection Type

Green top (sodium heparin)
Note: Critical ambient, send whole blood in original tube. Specimen
cannot be collected after 1300 on Friday or on a weekend.

Minimum Collection Volume

0.5 mL

Reference Range

Low immune response: ATP level ≤225 ng/mL

Moderate immune response: ATP level 226-524 ng/mL

Strong immune response: ATP level ≥525 ng/Ml

Critical Value

N/A

Interpretation

Results of the ImmuKnow assay should be used in conjunction with
clinical presentation, medical history, and other clinical
indicators when establishing the immune status of a patient. This
is a qualitative assay; therefore, the result does not quantify the
level of immunosuppression.

Rejection Criteria

Specimen type other than heparinized whole blood collected in
sodium heparin tube. Whole blood frozen, refrigerated, clotted or
received in transfer tube. Specimen will be rejected if greater
than 30 hours old.

Specimen Availability for Add-on Testing

This test cannot be added on.

Specimen Stability

Ambient (preferred): 30 hours
Refrigerated: Unacceptable
Frozen: Unacceptable

Day(s) Performed

Monday through Saturday

Performing Lab- Department

TUKHS-BH-Mail Outs

CPT Code

86352

LOINC Code

N/A

Test Alias

N/A

Additional Information / Notes

Turnaround time: 36 – 48 hours from receipt of
specimen