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Test Code FHLC Immunoglobulin M (IgM) Heavy and Light Chain (HLC) Pairs, Kappa and Lambda with Ratio


Specimen Required


Patient Preparation: Patient should be fasting for eight hours to avoid lipemic sample interference.

Specimen Type: Serum

Collection Container/Tube: SST or Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.75 mL

Collection Instructions:

1. Draw blood in a plain red-top tube, serum gel tube(s) is also acceptable.

2. Separate serum immediately after coagulation (30 minutes) to prevent hemolysis. Send 0.75 mL of serum refrigerated in a plastic vial.


Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 7 days
  Ambient  7 days
  Frozen  7 days

Reject Due To

Hemolysis Mild reject; Gross reject
Lipemia Mild reject; Gross reject
Icterus NA
Other Microbially-contaminated specimen; specimen containing particulate matter

Reference Values

IgM Kappa (g/L): 0.29-1.82

IgM Lambda (g/L): 0.17-0.94

IgM Kappa:IgM Lambda ratio: 0.96-2.30

Day(s) Performed

Tuesday, Friday

Report Available

1 to 9 days

Performing Laboratory

LabCorp Burlington

CPT Code Information

83883 x 2