Ferritin


Abbrev Code:FERTN   
Order Code:LAB68Order Name:Ferritin
Methodology:Chemiluminescence
CPT Codes: 82728 x1
Turnaround Time:Performed and reported 24 hours/day.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel), St. Joseph - Red (no gel)
Alternate Containers: Purple (EDTA), Red (no gel), Red or gold (gel)
Collection Instructions:Collect sample before patient is given therapeutic iron or a blood transfusion. Blood transfusion can transiently increase in serum ferritin that peaks 24 hours post-transfusion, particularly if the blood has been stored for a longer period. (Blood 2011 Dec 15; 118(25):6675-82; Blood 1980 July;56(1):138-140).Therefore, if a patient has received blood, delay testing for several days to avoid false elevation of ferritin.
Causes for Rejection:Gross hemolysis; gross icterus
Contraindications:Large doses of biotin (10 mg or more per day) may cause clinically significant interference in ferritin levels. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot within 2 hours of collection, 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:7 days refrigerated; 6 months frozen
Test Performed at or Referral Lab Chemistry  (CSC Maple Grove, Range, UMMC West, UMMC East, Oxboro Clinic, Lakes, Ridges, Northland, Southdale, Clinics, CSC Mpls, Grand Itasca, St. Joseph's)


Interpretive

Reference Range:
Site Age Female (ng/mL) Male (ng/mL)
Grand Itasca All ages 24-336 24-336
St. Joseph, St. John, Woodwinds 13 mo-4 y 6-24 6-24
St. Joseph, St. John, Woodwinds 5-9 y 10-55 10-55
St. Joseph, St. John, Woodwinds 10-19 y 6-40 23-70
St. Joseph, St. John, Woodwinds 20 y & older 10-130 27-300
All other sites 6 mo - 14 y 7-142 7-142
All other sites 15-45 y 12-150 26-388
All other sites 46 y and older 8-252 26-388


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