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Worcestershire Acute Hospitals NHS Trust
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Test
B12 & Folate
CategoryClinical Biochemistry
Code
BF
Test information
Assessment of haemopoetic function.
Pre-analytical
Haemolysis unsuitable for Folate. Analysis cannot be added on to samples >24h old
Reference range
B12 197-771 ng/L 
Folate 3.89-26.8 ug/L
Special requirements
Serum or lithium heparin
Tube type
SST or lithium heparin
Gold and green tubes
TAT Inpatient
24 hrs
TAT GP/Outpatient
48 hrs
Referral lab
Local, Clinical Biochemistry
Page last updated: 11 January 2022