bicarb. bicarbonate
bid bis in die (Latin); twice a day
Bili Bilirubin
BIN bin, twice a night
B&J bones and joints
BJM benign juvenile melanoma
bones, joints and muscles
BJP Bence-Jones protein (protein in multiple myeloma)
bkft breakfast
bld cult blood culture
BLEO bleomycin sulfate
BM bone marrow
bowel movement
BMI body mass index