Which of the following tests is most commonly used to diagnose cholecystitis?
A. Abdominal CT scan
B. Abdominal ultrasound
C. Barium swallow
D. Endoscopy
Correct Answer: B. Abdominal ultrasound
An abdominal ultrasound can show if the gallbladder is enlarged, if gallstones are present, if the gallbladder wall is thickened, or if distention of the gallbladder lumen is present. A gallbladder ultrasound is the best test to evaluate gallbladder disease initially. A thickened gallbladder wall and gallstones are common findings with this condition.
Option A: An abdominal CT scan can be used to diagnose cholecystitis, but it usually isn’t necessary. Often a CT scan is ordered in the emergency department as the first test in the workup. Findings of cholecystitis and gallstones can often be seen in this imaging.
Option C: A barium swallow looks at the stomach and the duodenum. The barium swallow study, also known as a barium esophagogram or esophagram, is a contrast-enhanced radiographic study commonly used to assess structural characteristics of the entire esophagus. It may be used for the diagnosis of a wide range of pathologies including esophageal motility disorders, strictures, and perforations.
Option D: Endoscopy looks at the esophagus, stomach, and duodenum. Endoscopy is the insertion of a long, thin tube directly into the body to observe an internal organ or tissue in detail. It can also be used to carry out other tasks including imaging and minor surgery. Endoscopes are minimally invasive and can be inserted into the openings of the body such as the mouth or anus.
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