Interleukin 2
Test Mnemonic
INT2
CPT Codes
- 83520 - QTY (1)
LOINC ®
33939-0
Aliases
- IL2
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Place specimen on ice after draw. | Frozen, Critical | Critical Frozen. Centrifuge, transfer into a standard aliquot tube and freeze ASAP or within 2 hours of collection. Separate specimens must be submitted when multiple tests are ordered. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Place specimen on ice after draw. | Frozen, Critical | Critical Frozen. Centrifuge, transfer into a standard aliquot tube and freeze ASAP or within 2 hours of collection. Separate specimens must be submitted when multiple tests are ordered. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.4 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | After separation from cells: 30 minutes |
| Refrigerated | After separation from cells: Unacceptable |
| Frozen | After separation from cells: 1 year |
Days Performed
Sun - Sat
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Quantitative Multiplex Bead Assay |
Reference Range
| Interleukin 2, Serum | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | < or = 2.1 | pg/mL |
Special Info
Critical frozen. Separate specimens must be submitted when multiple tests are ordered. Contaminated or heat-inactivated specimens will be rejected. Refrigerated specimens are unacceptable. This test is New York DOH approved.
Clinical Info
Cytokine levels may demonstrate diurnal variation. For longitudinal comparison, it is recommended that cytokine levels be determined at the same time of day. Results are used to understand the pathophysiology of immune, infectious, or inflammatory disorders, or may be used for research purposes.