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Test Code TIBC PROFILE Total Iron Binding Capacity, Plasma or Serum

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma
Draw blood in a green-top (lithium heparin) tube(s) or a plasma gel tube(s). Spin down and send 1 mL of lithium heparin plasma refrigerated. Avoid hemolysis.
Note:  1. Iron supplements should be avoided for 24 hours prior to draw.

2. Indicate plasma on request form.
3. Label specimen appropriately (plasma).

 

Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL of serum refrigerated. Avoid hemolysis.

Note:  1. Iron supplements should be avoided for 24 hours prior to draw.

2. Indicate serum on request form.
3. Label specimen appropriately (serum).

Specimen Stability

Stable for:

Room temperature- 7 days

Refrigerated             3 weeks

Frozen                     several years   

Performing Laboratory

Conway Regional Clinical Laboratory Services

Reference Values

TIBC

Males:  260-400 µg/dL

Females:  260-445 µg/dL

 

To calculate the % saturation, an iron and TIBC must both be performed (Iron divided by TIBC = % saturation).

 

% SATURATION

Males:  20-55%

Females:  15-50%

Methodology

Guanidine/FerroZine Method

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

83550