G G Gravida (pregnant) GB Gallbladder GBP Gastric bypass GBS Gallbladder series (x-ray studies) GC Gonococcus (Neisseria gonorrhoeae) G-CSF Granulocyte-colony-stimulating...

F FBS Fasting blood sugar FECG, FEKG Fetal electrocardiogram FH Family history FHR Fetal heart rate FHT Fetal heart tone...

E EBR External beam radiation EBT External beam therapy EBV Epstein-Barr virus ECCE Extracapsular cataract extraction ECG, EKG Electrocardiogram; electrocardiography...

D D Diopter (lens strength) D&C Dilatation (dilation) and curettage dc, DC, D/C* Discharge; discontinue Decub. Decubitus (lying down) D.O....

C c with C&S Culture and sensitivity c/o Complains of, complaints C1, C2, and so on First cervical vertebra, second...