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22623 Ferritin, Serum

Ferritin, Serum
Test Code: FERRIT
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​ Serum Separator Tube (SST) ​Red Top Tube(RTT)​ 0.5 mL​ 0.4 mL​ 0.3 mL​
Collection Processing Instructions
Samples collected in a RTT must be removed from the clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.
Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​Ambient ​8 Hours
Refrigerated​ 7 Days​
Frozen (-20 degC)​ 6 Months
For longer duration, samples can be frozen at -70 degC.  Avoid repeated freezing and thawing. 
Do not thaw frozen samples in a 37 degC bath​ and avoid violent mixing as it may denature the ferritin.​
Rejection Criteria
Grossly hemolyzed
Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor-imaging studies.​
 
For testing performed at Weston: High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay. It is recommended that patients refrain from consuming any multivitamin or supplement containing biotin for at least 72 hours prior to collection of a blood sample.
Performing Laboratory Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Eau Claire
​Monday through Sunday
​Less than 2 hours
​two-site immunoenzymatic assay/ Beckman access2/DXI
Weston​

 ​Monday through Sunday​ ​Less than 2 hours​ ​Ferritin Method/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​​two-site immunoenzymatic assay/ Beckman access2/DXI
Marshfield​ Monday through Sunday​ Less than 2 hours​
 Two-step Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur ​
​Minocqua
​Monday through Sunday
​Less than 2 hours
​​​two-site immunoenzymatic assay/ Beckman access2/DXI
Reference Range Information
Performing Location Reference Range
​All Performing Sites using Dimension Analyzer ​Adult Male: 26-388 ng/mL
Adult Female: 26-252 ng/mL
Marshfield​

Adult Male: 24-322 ng/mL
Adult Female: 24-291 ng/mL ​

Note: The lower limit of the reference interval is the same for both men and women.  This is based on literature review of studies that have evaluated ferritin as a test for iron deficiency along with chart review of several Marshfield patients.

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82728 ​ ​ ​ ​ ​
Ordering Applications
Ordering Application Description
​Centricity ​Ferritin
​Cerner ​Ferritin
​COM ​Ferritin
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​ Serum Separator Tube (SST) ​Red Top Tube(RTT)​ 0.5 mL​ 0.4 mL​ 0.3 mL​
Collection Processing
Samples collected in a RTT must be removed from the clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.
Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​Ambient ​8 Hours
Refrigerated​ 7 Days​
Frozen (-20 degC)​ 6 Months
For longer duration, samples can be frozen at -70 degC.  Avoid repeated freezing and thawing. 
Do not thaw frozen samples in a 37 degC bath​ and avoid violent mixing as it may denature the ferritin.​
Rejection Criteria
Grossly hemolyzed
Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor-imaging studies.​
 
For testing performed at Weston: High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay. It is recommended that patients refrain from consuming any multivitamin or supplement containing biotin for at least 72 hours prior to collection of a blood sample.
Reference Range Information
Performing Location Reference Range
​All Performing Sites using Dimension Analyzer ​Adult Male: 26-388 ng/mL
Adult Female: 26-252 ng/mL
Marshfield​

Adult Male: 24-322 ng/mL
Adult Female: 24-291 ng/mL ​

Note: The lower limit of the reference interval is the same for both men and women.  This is based on literature review of studies that have evaluated ferritin as a test for iron deficiency along with chart review of several Marshfield patients.

For more information visit:
Performing Laboratory Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Eau Claire
​Monday through Sunday
​Less than 2 hours
​two-site immunoenzymatic assay/ Beckman access2/DXI
Weston​

 ​Monday through Sunday​ ​Less than 2 hours​ ​Ferritin Method/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​​two-site immunoenzymatic assay/ Beckman access2/DXI
Marshfield​ Monday through Sunday​ Less than 2 hours​
 Two-step Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur ​
​Minocqua
​Monday through Sunday
​Less than 2 hours
​​​two-site immunoenzymatic assay/ Beckman access2/DXI
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82728 ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.