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HelpTest Code IRN Iron Level
EHR Test Codes
| Test Code | Test Name | |
| Atlas | IRN | Iron |
| Cerner | IRN | Iron Level |
Specimen Requirements
Preparation of Patient:
Irons should be drawn before 12 Noon, but will be drawn at any time. Irons drawn after 12 Noon may exhibit up to a 30% decrease due to diurnal variation
Container Type:
Green Top 5mL Lithium Heparin Separator Tube
Or
Gold Top 6mL SST Gel & Clot Activator Tube
Specimen Type:
Plasma or Serum
Specimen Volume:
2.5 mL Plasma or Serum minimum .5 mL
Specimen Handling/Transport:
Separate plasma or serum from cells within 2 hours of collection.
Transport ambient room temperature.
Specimen Stability/Storage:
4 days ambient room temperature
5 days refrigerated 2-8°C
Specimen Rejection:
Hemolysis
Performing Laboratory
Munson Healthcare Laboratories
Chemistry Department
Priority, Frequency, & Turnaround
Priority:
Non-Emergent
Frequency:
24 hours 7 days a week
Turnaround:
0 - 1 days
STAT 45 minute from receipt in lab
Methodology
TPTZ chromogenic
Reporting
Reference Range:
Male 50 -175 ug/dL
Female 39 - 167 ug/dL
Interpretive Data:
Irons drawn after 12 noon may be decreased due to diurnal variation.
Critical Decision:
None
Clinical Significance
Increased iron levels seen in hemochromatosis, excessive parenteral administration of iron, acute iron toxicity and liver disease. Decreased iron levels are seen in iron deficiency, reduction in quantity of transferrin, chronic infections and chronic kidney disease.
CPT Code(s)
83540
Billing
Medicare frequency limitations exist for this test in addition to diagnosis requirements. Click on link for list of medically necessary diagnoses and frequency limits: Medicare NCD Iron Studies Jan26. Click on link for Advance Beneficiary Notice of Noncoverage form: ABN Form