Test Index - B

B1     see vitamin B1
B2     see vitamin B2
B6     see vitamin B6
B12 and folate
Basophils     see FBC
Beta-2 glycoprotein-1 antibody     see anti-phospholipid antibodies
Beta amyloid (CSF)     see dementia biomarkers (CSF)
Beta crosslaps     see CTX
Beta HCG (beta human chorionic gonadotrophin, β-HCG)
Biopsy specimens: for histopathology RSCH, for histopathology PRH
Bleeding time - test no longer available.
Blood gases - please use the ward-based blood gas analysers (click here for POCT information).
BNP     see NT-proBNP
Borrelia serology     see Lyme serology (borreliosis)
Briact     see brivaracetam
Butyrylcholinesterase     see cholinesterase (scoline apnoea)