FBS
fasting blood sugar
F
degrees Fahrenheit
FBW
fasting blood work
FC
Foley catheter
FDA
Food and Drug Administration
Fe
iron
FF, FFl
force fluids
FH, FHR
fetal heart rate
Fl, fl
fluid
Fr, Fx
fracture
FSH
follicle stimulating hormone
fr
foot
FUO
fever of unknown origin