Gallbladder ejection fraction rate 14%, what does this mean?

It means nothing: If you have no pain or no symptoms , if you have means that gall bladder is not contracting to the expected level , may have infection in it , you may be forming gravel or stones , eventually may need removal.

Reduced gb ejection: Gallbladder ef determined as percentage emptying of gall bladder on hida nuclear medicine study with administration of cck ( cholecystokinin, hormone). In adults usually greater than 35% is normal. Low gbef can be related to gall bladder disease or dyskinesia. Usually compared to findings on ultrasound such as gall stones or wall thickening.Gbef affected by degree of fasting and pain medications.