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

Blood Test Information

minimum sample volume required ~ 5ml

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Test Code: FOL

Other acceptable tube types
Lithium heparin (pale green)

Special instructions

Time limit for add on
48 hours post collection.

Minimum retesting interval
Test should not be repeated within 42 days.

Reference range
3 - 20


Linked to

Turnaround Time
2 days

Department: Biochemistry

Clinical Application
NOTE: Change in method and reference ranges from 10/01/2023.

At levels 3.0 - 4.5 ug/L, consider other causes of macrocytosis but if clinical suspicion remains high, consider a trial of therapy after B12 levels have been investigated. Monitor FBC/MCV for response.


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