List of medical abbreviations: F

Sortable table
Abbreviation Meaning
Fx fracture
FA Fanconi anemia
FAMMM syndrome familial atypical multiple mole melanoma syndrome
FANA fluorescent antinuclear antibody test
FAP familial adenomatous polyposis
FAST focused assessment with sonography for trauma
FB foreign body
FBC Family Birth Center
full blood count
FBE full blood exam
FBG fasting blood glucose
FBS Failed back syndrome
fasting blood sugar
F/C fevers and/or chills
F/C/S fevers and/or chills and/or sweating
FCS Faciocutaneoskeletal syndrome
FDC follicular dendritic cells

fixed dose combination

FDG fluordeoxyglucose
FDIU fetal demise in utero
FDP fibrin degradation product
Flexor digitorum profundus
FDS Flexor digitorum superficialis
Fe iron
FEF25–75 forced expiratory flow at 25–75% of forced vital capacity
fem female
femoral
FEN Fluids, Electrolytes, Nutrition
FEP free erythrocyte protoporphyrin
fibroepithelial polyp
FESS functional endoscopic sinus surgery
FET frozen embryo transfer
FEV1 forced expiratory volume in 1 second
FF free fluids (non-thickened fluids)
FFA free fatty acids
FFP fresh frozen plasma
FHR fetal heart rate
FHS fetal heart sound
FHT fetal heart tones
FHx family history (in medicine, meaning specifically the medical histories of family members and ancestors)
FIBD found in bed dead
FISH fluorescence in situ hybridization
FL femur length
FLAIR fluid attenuated inversion recovery
FLK funny-looking kid (slang reference to dysmorphic features)
fl.oz. fluid ounce (1 Imperial fluid ounce ≈ 28.4 mL; 1 U.S. fluid ounce ≈ 29.6 mL) (use of these units is generally deprecated in modern medicine in favor of mL)
FM fetal movement
FMF fetal movements felt
FMP first menstrual period (that is, menarche)
FMPP Familial male precocious puberty
fMRI functional magnetic resonance imaging
FMS Fibromyalgia Syndrome
F→N finger-to-nose test (one simple clinical test of motor coordination)
FNA fine-needle aspiration
FNAB fine-needle aspiration biopsy
FNAC fine-needle aspiration cytology
FNC full nursing care
FND Functional neurologic disorder
FNH focal nodular hyperplasia
FOB Foot of Bed, father of baby, Fiberoptic Bronchoscopy
FOBT fecal occult blood test
FOF found on floor (patient fell out of bed)

FOP Fibrousdysplasia ossificans progressiva

FOS full of stool
FOOSH fall on outstretched hand
FP Family Planning
FPG fasting plasma glucose
FRDA Friedreich's ataxia
FROM full range of motion
FSBS finger-stick blood sugar (one method of blood glucose monitoring)
FSE fetal scalp electrode
FSGS focal and segmental glomerulosclerosis
FSH follicle-stimulating hormone
FSIQ full scale intelligence quotient (Wechsler Intelligence Scale for Children)
FTA fluorescent treponemal antibody (see syphilis)
FTA-ABS fluorescent treponemal antibody absorption (see syphilis)
FtM Female to Male transgender person (Trans Man)
FTT failure to thrive
F/U follow-up
FUE Follicular Unit Extraction
FUT Follicular Unit Transplantation
FUO fever of unknown origin
FVC forced vital capacity (spirometry test value used in assessment of chronic obstructive pulmonary disease)
FWB full weight bearing, fetal wellbeing
FWD full ward diet;
forward
Fx fracture; fraction
fxn function