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Folate
minimum sample volume required ~ 5ml
Test Code: FOL
Other acceptable tube types
Lithium heparin (pale green)
Special instructions
None
Time limit for add on
48 hours post collection.
Minimum retesting interval
Test should not be repeated within 42 days.
Reference range
3 - 20
Units
µg/L
Linked to
Haematinics
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.
