Iron Binding Capacity


Sunquest Code:FEB  
Epic Code:LAB3467Epic Name:IRON BINDING CAPACITY
Order Instructions:Use FEB for add-on to FE previously ordered.
Methodology:Bichromatic end point
CPT Code:83550
Turnaround Time:Performed 7 days/week, except clinics which are performed Mon-Fri.
Special Instructions:Falsely elevated iron levels will result if the patient has received Imferon within the past two months.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (lithium heparin) on ICE, Green (sodium heparin, no gel), Green (sodium heparin, no gel) on ICE, Red (no gel))
Collection Instructions:A fasting AM specimen is preferred because of diurnal variation. Collect sample before patient is given therapeutic iron or a blood transfusion. Blood transfusion can transiently (<24 h) increase serum iron concentration and transferrin saturation (but not total iron binding capacity), particularly if the blood has been stored for a longer period (Blood 2011 Dec 15; 118(25):6675-82; Arch Pathol Lab Med 1993 Jun; 117(6):(622-4). Calculation for Transferrin Saturation: (serum iron/TIBC) x 100.
Causes for Rejection:Hemolysis


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Chemistry  (Fairview Range - FRMC, UMMC-East Bank, Oxboro Bloom, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank)


Interpretive

Reference Range:

0-3 mo

160-300 ug/dL

4 mo and older

240-430 ug/dL

Calculated ISI

15-46 percent

 

 



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