Gallbladder Ejection Fraction Test
Health Checkups
≈ ¥20-50
(≈ $3-7)
15 min
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Description
Estimated cost for Gallbladder Ejection Fraction Test at general public hospitals in China is about ¥15-40, and at Grade 3A hospitals about ¥20-50, varying by hospital tier and region.
Main Uses
The primary purpose of the Gallbladder Ejection Fraction test is to evaluate the function of the gallbladder, particularly its ability to contract and release bile. It is used in diagnosing conditions such as chronic acalculous gallbladder disease, biliary dyskinesia, and to determine the need for surgical intervention like cholecystectomy when symptoms persist despite no visible stones on imaging. Additionally, it helps in differentiating between functional and structural causes of right upper quadrant pain.
Normal Range
The normal range for the Gallbladder Ejection Fraction (GBEF) test, a common method to assess gallbladder contractility, is typically above 35-40%. This indicates that more than 35-40% of the gallbladder's contents are expelled after stimulation, usually through the administration of cholecystokinin (CCK).
Low Values - Possible Causes
Low values in the Gallbladder Ejection Fraction can be caused by: Chronic cholecystitis, leading to a less responsive or inflamed gallbladder; Biliary dyskinesia, where the gallbladder does not empty properly; Gallstones obstructing the bile ducts; Sclerosing cholangitis, a condition causing inflammation and scarring of the bile ducts; Functional gastrointestinal disorders affecting motility.
High Values - Possible Causes
High values in the Gallbladder Ejection Fraction are less commonly discussed as they often indicate a well-functioning gallbladder. However, if abnormally high, it might suggest: Overstimulation due to excessive CCK administration; Rare conditions affecting the biliary system's sensitivity to CCK; Misinterpretation of results or technical errors during the test; In some cases, it may not have clinical significance and could be a normal variation.