Iron Absorption Test

Test performed at York Hospital Laboratory.

Test Code

Alias/See Also
Oral Iron Absorption Test

CPT Codes

  • Iron, Pre-Dose
  • Iron, Post-Dose

Preferred Specimen
0.2 mL Serum, each specimen

Draw baseline specimen before dose. Draw a second specimen 45 minutes post-dose.

Transport Container
Serum Separator Tube
Green Top Lithium Heparin Tube also acceptable

Transport Temperature

Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 3 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed specimens


Setup Schedule

Report Available
Next Day

Reference Range
Male 49 - 181 ug/dL
Female 37 - 170 ug/dL

Clinical Significance
The oral iron absorption test is sometimes used in the assessment of ferrous preparation efficacy before therapeutic use in the treatment of patients with anemia. Overdoses of iron can cause the production of free radicals that are dangerous

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.