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Test Code Billings Clinic: 4331 Iron Panel with Measured TIBC

Performing Laboratory

Billings Clinic Laboratory:  Chemistry

Useful For

  • Screening for chronic iron overload diseases, particularly hereditary hemochromatosis
  • Serum iron, total iron-binding capacity, and percent saturation are widely used for the diagnosis of iron deficiency. However, serum ferritin is a much more sensitive and reliable test for demonstration of iron deficiency.

Methodology

Iron:  Ferene without Prior Protein Removal

TIBC:  Spectrophotometric 

Transferrin Saturation (FTI):  Calculated

 

Specimen Requirements

Serum should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 1.0 mL of serum frozen

Storage/Stability

Specimen Type Temperature Time
Serum Refrigerated 7 days
  Frozen (preferred) 2 months
  Ambient 4 days

 

Reject Due To

  • Hemolysis
  • Gross lipemia

Reference Values

Iron

See individual test listing

 

TIBC

250 - 450 µg/dL

 

Transferrin Saturation

20-100%

 

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

83540 - iron
83550 - iron binding capacity

 

LCD or NCD test: ICD-10 code is required for this test. When appropriate, obtain a properly executed ABN and submit the ABN with test order(s). See “Medical Necessity and Advanced Beneficiary Notice (ABN) Policy and Form” under ”Resources" for a copy of a form and additional information.

LOINC Code Information

Reporting Name LOINC Code
Iron 2498-4
TIBC (measured) 2500-7
Transferrin Saturation (calculated) 6796-7

 

Profile/Testing Information

Profile Information:
Iron Transferrin Saturation (Calculation)
Total Iron-Binding Capacity (TIBC) (Calculation)