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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

(a.k.a Serum Ferritin)
minimum sample volume required ~ 5ml

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Test Code: FER

Tube type: SST

Other acceptable tube types
Lithium heparin (pale green)

Special instructions

Reference ranges
Age <5 years: 12 - 56
Age 5 - 15 years: 15 - 56
Female 16+ years: 100 - 310
Male 16+ years: 100 - 340

Minimum retesting interval
Test should not be repeated within 42 days


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Turnaround Time
2 days

Department: Biochemistry

Clinical Application

Interpretation of under 16 ranges
A low ferritin <12 g/L (age <5 years),
or <15 g/L (age 5+), indicates iron deficiency.
A normal ferritin result does not exclude iron
deficiency and clinical correlation is required.
An elevated ferritin result is usually reactive.

Interpretation of adult ranges
<15 g/L: Consistent with absolute iron deficiency
15-30 g/L: Indicative of low body iron stores
30-100 g/L: Indeterminate ferritin
100-340 g/L: Normal ferritin
>340 g/L: High ferritin
100-310 g/L: Normal ferritin
>310 g/L: High ferritin


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