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7573X: Iron and Total Iron Binding Capacity Print View
Iron, Total SP  view ref range  mcg/dL 
Iron Binding Capacity Total CALC  view ref range  mcg/dL(calc) 
Iron % Saturation CALC  view ref range  % (calc) 

PRIMARY
1 Serum 1 (0.5) mL   Frozen - 28 Day(s)/Refrigerated - 7 Day(s)/Room Temperature - 6 Day(s)  
ALTERNATE
  Plasma Heparinized 1 (0.5) mL   Refrigerated - 7 Day(s)/Frozen - 28 Day(s)/Room Temperature - 6 Day(s)  
  Plasma Lithium Heparin 1 (0.5) mL   Refrigerated - 7 Day(s)/Room Temperature - 6 Day(s)/Frozen - 28 Day(s)  

Serum iron quantification is useful in confirming the diagnosis of iron-deficiency anemia or hemochromatosis. The measurement of total iron binding in the same specimen may facilitate the clinician's ability to distinguish between low serum iron levels caused by iron deficiency from those related to inflammatory neoplastic disorders. The assay for iron measures the amount of iron which is bound to transferrin. The total iron binding capacity (TIBC) measures the amount of iron that would appear in blood if all the transferrin were saturated with iron. It is an indirect measurement of transferrin concentrations but expressed as an iron measurement. To obtain the percent saturation, the serum iron is divided by the TIBC which gives the actual amount of saturated transferrin. The percent saturation is low in iron deficiency and high in iron storage diseases.

Patient Preparation: Samples should be taken in the morning from
patients in a fasting state, since iron values decrease by 30% during
the course of the day and there can be significant interference from
lipemia.
Setup Schedule
Monday-Saturday

Reported (Analytical Time)
Same day

CPT Codes
83540,83550

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Reject Criteria: Hemolysis; anticoagulants other than heparin






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