Medical definitions - F

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Fellow - a doctor training to become a specialist in a given field of medicine.

Fentanyl - a narcotic analgesic used to relieve pain; stronger than morphine.

FFP – fresh frozen plasma; a blood product.

FISH - fluorescence in situ hybridization, a molecular technique used in chromosome studies.

Foley catheter – a thin tube inserted into the bladder to remove urine.

Fryn’s syndrome – a genetic condition involving abnormalities in many organ systems; abnormalities include a characteristic facial appearance, including a broad nasal bridge (part of the nose between the eyes), small jaw, abnormal ears, cleft palate, abnormal fingers, underdevelopment of the lungs, and abnormalities of the urogenital system (kidneys and genitals).