ARUP's Laboratory Test Directory
| 0050494: Interleukin 1 Beta by Chemiluminescence |
| Test Mnemonic: IL1B | |
|
Methodology: Chemiluminescent Immunoassay
Performed: Mon, Wed, Fri Reported: 1-3 days |
| Specimen Required: | |
|
Collect: One 3 mL plain red, lavender (EDTA), pink (K2EDTA), green (sodium or lithium heparin), amniotic fluid, or cell-free tissue culture supernatant.
Transport: 1 mL serum, plasma, amniotic fluid, or cell-free tissue culture supernatant, frozen. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.3 mL serum, plasma, amniotic fluid, or cell-free tissue culture supernatant, frozen. Remarks: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. Separate serum, plasma, or fluid within 30 minutes from cells and freeze. Avoid freeze/thaw cycles. Unacceptable Conditions: Heat-inactivated, refrigerated or contaminated specimens. Stability: After separation from cells: Ambient: 30 minutes; Refrigerated: Unacceptable; Frozen: 1 year |
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| Reference Interval: |
| < 5.0 pg/mL |
| Interpretive Data: | |
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Please refer to Statement D in the Compliance Statements section in the front of the Laboratory Test Directory. |
| Note: | |
| Interleukin 1 beta mediates a wide variety of biological actions. It stimulates the production and secretion of interleukin 2 and the expression of interleukin 2 receptors. In synergy with tumor necrosis factor alpha, elevated interleukin 1 beta levels are seen in septic shock as well as in the cerebrospinal fluid of meningitis and other central nervous system processes such as multiple sclerosis. |
| CPT Code(s): | |
| 82397 |