BASMI (Bath Ankylosing Spondylitis Metrology Index)

Baso (basophil)

BASRI (Bath Ankylosing Spondylitis Radiology Index)

BAV (bicuspid aortic valve)

BAVM (brain arteriovenous malformation)

BB (breakthrough bleeding)

BBB (blood-brain barrier)

BBB (bundle branch block)

BBP (blood-borne pathogens)

BBS (bilateral breath sounds)