c - about 
C - Cataplexy 
C - Celsius 
c - centimetre 
C - centrigrade 
C - constant 
C - gl with correction 
C - gl with glasses 
C - With 
C DIF - Clostridium Difficile 
C&S - culture and sensitivity 
C' - Complement 
C-SPI - Certified Specialist in Poison… 
C.I. - confidence interval 
C/B - Complicated By 
C/D - Cup to Disk ratio 
C/O - Complaining of 
c/o - complains of 
C/W - Compared With 
C/W - consistent with 
Ca - Calcium 
CA - Cancer 
CA - carcinoma 
CA - chronological age 
CAA - crystalline amino acids 
cab - coronary artery bypass 
CABG - Coronary Artery Bypass Graft 
CABG - coronary artery bypass grafting 
CABG - coronary artery bypass grafts 
CAC - Carrier Advisory Committee