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Lab Test Dictionary

Interferon-alpha

Methodology

Enzyme- linked immunosorbent assay (ELISA)


Synonyms

IFN-ALPHA; IFN-A; INTERFERON-A; IFNALPHA

Specimen Type

Whole Blood or Plasma or Serum

Performing Lab

Cincinnati Children's Diagnostic Immunology


Epic ID

Other Reference Test

Lab Test Days

Every 2 Weeks

Standard TAT

2 Weeks


Collection Information

Specimen Required

1-3 mL Whole Blood

Container Type

EDTA (Lavender-Top) Tube

Collection Instructions

Serum collected in a red-top tube or gold serum separator tube (SST) is also acceptable. Keep sample as whole blood for delivery to reference lab within 24 hours of collection. If delivery cannot occur within 24 hours, separate plasma/serum from cells within 24 hours of collection and freeze immediately.


Processing Information - Lab Use Only

Transport Temperature

Room Temp-OK/Frozen-OK

Specimen Stability

Room Temp: 24 Hours; Refrigerated: Unacceptable; Frozen: 6 Months (Plasma or Serum only) (Unacceptable for Whole Blood)

Rejection Criteria

Frozen whole blood; wrong container/tube type; serum/plasma sent room temp or refrigerated

Test Volume Required

3 mL Whole Blood or (two) 0.5 mL Serum or Plasma

Minimum Test Volume

1 mL Whole Blood or (one) 0.5 mL Serum or Plasma

Processing Instructions

Keep sample as whole blood for delivery to reference lab within 24 hours of collection. If delivery cannot occur within 24 hours, separate plasma/serum from cells within 24 hours of collection and freeze immediately. Complete a Cincinnati Children's Diagnostic Immunology requisition form and ship with sample room temp (whole blood only) or frozen (plasma or serum only).


CPT Codes

83520


Revised

7/19/23

Initials

SA