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Iron Binding Capacity, Including Iron and % saturation (TSAT)

Test Summary

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.

Aliases

  • FE IBC
  • FE, IBC %SAT
  • FE, Total, TIBC, %SAT
  • Iron Binding Capacity (IBC)
  • Iron Profile
  • Iron Panel
  • Iron Saturation
  • Iron, TIBC
  • Saturation, Iron%
  • Saturation, Transferrin
  • TIBC

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum

Minimum Volume

1 mL

Instructions

Barrier tubes (serum separator tubes or plasma separator tubes) are preferred. If non-barrier tubes are utilized, the serum/plasma must be removed immediately after centrifuging and placed in a screw-cap transfer tube.

Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.

Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.

Patient Preparation

N/A

Storage

Original tube preferred, may be sent in a screw-top transfer tube.

Transport Temperature

Room Temperature or Refrigerated

Specimen Stability

  • Room Temperature = 7 days
  • Refrigerated = 3 weeks
  • Frozen = 1 year

Limitations

N/A

Other Acceptable Specimens

Plasma from Lithium Heparin (Light Green Top) tube

Unacceptable Specimens

Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, contaminated sample.

Order Code

FEPR

EPIC (Premier) Code

LAB272

Includes

Includes: Iron, serum and % saturation (TSAT)

CPT Code

  • 83540
  • 83550

Billing Code

  • 300285
  • 300286

CPT Statement

Methodology

See individual tests

FDA Status

FDA Approved

Physician Attestation of Informed Consent

N/A

Testing Laboratory

CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439

Department

Chemistry

Reference Range

TIBC: 200-450 mg/dL

Setup Schedule / Expected Turnaround Time

24/7; Report available: Daily

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum

Minimum Volume

1 mL

Instructions

Barrier tubes (serum separator tubes or plasma separator tubes) are preferred. If non-barrier tubes are utilized, the serum/plasma must be removed immediately after centrifuging and placed in a screw-cap transfer tube.

Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.

Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.

Patient Preparation

N/A

Storage

Original tube preferred, may be sent in a screw-top transfer tube.

Transport Temperature

Room Temperature or Refrigerated

Specimen Stability

  • Room Temperature = 7 days
  • Refrigerated = 3 weeks
  • Frozen = 1 year

Limitations

N/A

Other Acceptable Specimens

Plasma from Lithium Heparin (Light Green Top) tube

Unacceptable Specimens

Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, contaminated sample.

Billing

CPT Code

  • 83540
  • 83550

Billing Code

  • 300285
  • 300286

CPT Statement

Result Information

Methodology

See individual tests

Testing Laboratory

N/A

Reference Range

TIBC: 200-450 mg/dL

Setup Schedule / Expected Turnaround Time

24/7; Report available: Daily