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Test ID FIFLC Immunofixation with Free Light Chains, Quantitative, Urine

Specimen Required

Specimen Type: Urine

Submission Container/Tube: Two 4-mL plastic aliquot tube(s)

Specimen Volume: 8 mL (Two 4-mL plastic aliquot tube(s))

Collection Instructions:

1. Collect urine for 24 hours (NO preservative).

2. Refrigerate specimen during the 24-hour collection.

3. Send specimen refrigerate in Two 4-mL plastic aliquot tube(s)

4. Collection volume and duration are required

Method Name

Qualitative Immunofixation Electrophoresis/Quantitative Immunoturbidimetry

Reporting Name

Immunofix Free Light Chains, U

Specimen Type


Specimen Minimum Volume

4 mL (2 vials 2 mL each)

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 21 days
  Frozen  180 days

Reference Values

Total Protein

Less than 150 mg/d

Free Urinary Kappa Light Chains

0.00-32.90 mg/L

Free Urinary Kappa Excretion/Day

By report

Free Urinary Lambda Light Chain

0.00-3.79 mg/L

Free Urinary Lambda Excretion/Day

By report

IFE Interpretation

By report

Performing Laboratory

ARUP Laboratories

CPT Code Information



83520 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FIFLC Immunofix Free Light Chains, U Not Provided


Result ID Test Result Name Result LOINC Value
Z5897 Hours Collected 30211-7
Z5898 Total Volume 19153-6
Z5899 Total Protein 2889-4
Z5901 Free Urinary Kappa Light Chains 38176-4
Z5912 Free Urinary Kappa Excretion/Day 38177-2
Z5913 Free Urinary Lambda Light Chain 38178-0
Z5914 Free Urinary Lambda Excretion/Day 38169-9
Z5900 IFE Interpretation 49277-7

NY State Approved


Day(s) Performed

Monday through Sunday

Report Available

1 to 9 days