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Test Code IgD Immunoglobulin D (IgD), Serum

Reporting Name

Immunoglobulin D (IgD), S

Useful For

Providing information on the humoral immune status

 

Identifying an IgD monoclonal gammopathy


Ordering Guidance


To distinguish between polyclonal and monoclonal IgD, order PEISO / Protein Electrophoresis and Isotype, Serum.



Specimen Required


Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Patient Preparation: Fasting preferred but not required

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 1 mL

Collection Instructions: Centrifuge and aliquot serum into plastic vial.


Seattle Children's Hospital Note:

Collect 2.0 mL whole blood in a Red top.

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  21 days

Day(s) Performed

Monday through Friday

Seattle Children's Hospital Note:

TAT: 3 - 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Method Name

Turbidimetry

Method Description

The determination of the soluble antigen concentration by turbidimetric methods involves the reaction with specific anti-serum to form insoluble complexes. When light is passed through the suspension formed a portion of the light is transmitted and focused onto a photodiode by an optical lens system. The amount of transmitted light is indirectly proportional to the specific protein concentration in the test sample. Concentrations are automatically calculated by reference to a calibrations curve stored within the instrument.(Package insert: Optilite IgD Kit. The Binding Site Group, Ltd; 08/2018)

Reference Values

≤10 mg/dL

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82784

LOINC Code Information

Test ID Test Order Name Order LOINC Value
IGD Immunoglobulin D (IgD), S 2460-4

 

Result ID Test Result Name Result LOINC Value
IGD Immunoglobulin D (IgD), S 2460-4

Report Available

1 to 3 days

Reject Due To

Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK
Heat-activated specimen Reject