Iron


Sunquest Code:FE  
Epic Code:LAB94Epic Name:Iron
Synonyms:FE
Methodology:Biochromatic end point
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Performed and reported 24 hours/day.


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: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).Therefore, if a patient has received blood, delay testing for 24 hours to avoid false elevation of iron or transferrin saturation. Calculation for Transferrin Saturation: (serum iron/TIBC) x 100.
Causes for Rejection:Hemolysis
Contraindications:Falsely elevated iron levels will result if the patient has received therapeutic iron within the past two months. Patients treated with metal-binding drugs such as Deferoxamine may have depressed iron values as chelated iron may not properly react in the iron assay.


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  (University of Minnesota Health Maple Grove Clinics, Fairview Range - FRMC, UMMC-East Bank, Oxboro Bloom, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, Grand Itasca GICH)


Interpretive

Reference Range:
 
Age µg/dL
0 - 6 d 110-270
7 - 30 d 80-156
1 - 5 mo 25-115
6 mo - 13 y 25-140
14 y and older 35-180
 GICH: All ages 50-212 µg/dL  


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