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Bartholins abscess
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Bartonella PCR
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BCR / ABL gene fusion
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Beta-2-glucan
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Beta-2-microglobulin
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Beta-2-microglobulin (1)
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Betahydroxybutyrate
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Bicarbonate
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Bile
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Bile acids
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Biopsies -see tissues also
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Biotinidase
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Bird/pigeon/poultry fanciers disease - see avian serology
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BK virus PCR (blood)
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BK virus PCR (CSF)
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BK virus serology
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Blood group & antibody screen
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Blood group & antibody screen (2)
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Bone
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Bone profile
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Bordetella culture (whooping cough)
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Bordetella PCR (whooping cough)
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Bordetella pertussis (whooping cough) serology
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Bordetella pertussis PCR
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Borrelia burgdorferi PCR (Lyme disease)
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Borrelia burgdorferi serology (Lyme disease)
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Brucella serology
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Burns - see Swabs - skin, superficial wounds