ARUP's Laboratory Test Directory

Immunoglobulin D, Serum : 0099200

Mnemonic: IGD

Methodology: Quantitative Nephelometry
Performed: Mon, Wed, Fri
Reported: 1-4 days
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Plasma is not recommended.

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Contaminated, hemolyzed, or severely lipemic specimens.

Stability (collection to initiation of testing): After separation from cells: Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 1 month
Reference Interval:
Less than or equal to 15.3 mg/dL
Interpretive Data: IgD is one of the five classes of immunoglobulin.  IgD is mainly found on the surface of B-cells and may help regulate B-cell function. IgD likely serves as an early B-cell antigen receptor, however, the function of the circulating IgD is largely unknown.
CPT Code(s): 82784
Cross References: IgD (Immunoglobulin D, Serum), IgD, Total by Nephelometry (Immunoglobulin D, Serum)