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HelpTest Code LAB3858 Interleukin-18 (IL-18)
Additional Codes
IL-18
Clinical System Name
Interleukin-18 (IL-18)
Synonyms
ALPS Biomarker (IL-18); IL18; Interleukin 18
Sample Requirements
Specimen: Whole Blood
Container(s): Red Top-Plain, Gold, or Gold Microtainer
Preferred Vol: 3.0 mL
Minimum Vol: 1.0 mL
Processing Instructions
Reject due to: Whole blood sent frozen. Blood collected in wrong container/tube type. Separated serum sent room temperature or refrigerated.
Spin: Y
Aliquot: Y
Temp: -20 C
Storage Location: CPA -20 freezer, Send Outs rack.
Off-site Collection: Centrifuge and separate serum from cells within 48 hours of collection. Transfer 1.5 mL serum (Min. 0.5 mL) to an aliquot tube affixed with large Epic label. Freeze at -20 C. Transport frozen.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood | Room Temp | 48 h |
| Refrigerated | Unacceptable | |
| Serum | Frozen | 6 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | Weekly | 2 - 3 w |
Performing Laboratory
Cincinnati Children’s Hospital
Diagnostic Immunology Laboratory
DIL - Rm R2328
3333 Burnet Avenue
Cincinnati, OH 45229-3039
Phone: (513) 636-4685
Department
Department: Send Outs
Phone: (206) 987-2563
CPT Codes
83520
Methodology
Method: Automated Microfluidics Immunoassay Method
Analytical Volume: 0.5 mL Serum
Reference Range
| Test | Reference Range |
| IL-18 | ≤477 pg/mL |
Send Out Instructions
| Reference Lab Test Name: | IL-18 (Interleukin-18) |
| Reference Lab Test Number: | LAB00541 |
| Instructions: | Ship Monday through Thursday via FedEx Priority Overnight. Saturday deliveries are not accepted. |