Q 51) A 32-year-old woman with type 1 diabetes presents with complaints of nausea, fullness, and bloating after meals. She reports that her symptoms have become progressively worse over the past few months. After ruling out other conditions with upper endoscopy and gastrointestinal contrast studies, a gastric emptying scan is ordered. The results show that 55% of a solid meal remains in the stomach after 2 hours. Based on these findings, which of the following statements is most accurate regarding the patient's diagnosis?
A) The diagnosis of gastroparesis is unlikely because liquid emptying was not assessed.
B) A diagnosis of gastroparesis is probable because more than 50% of the solid meal is retained after 2 hours.
C) The diagnosis of gastroparesis is definitive based solely on the gastric emptying scan.
D) The diagnosis of gastroparesis cannot be made because the scan did not assess delayed liquid emptying.
Ans b
B) A diagnosis of gastroparesis is probable because more than 50% of the solid meal is retained after 2 hours.
In this patient, the gastric emptying scan shows that more than 50% of a solid meal remains in the stomach after 2 hours, which supports the diagnosis of gastroparesis. According to the diagnostic criteria, gastroparesis is considered probable if more than 50% of the solid meal remains in the stomach at 2 hours. Liquid emptying is not as reliable for diagnosing gastroparesis, particularly in patients with diabetes, and does not need to be assessed to confirm this diagnosis. A definitive diagnosis requires the characteristic findings from a solid-phase gastric emptying test, not just the scan alone.
Q 52) Which of the following is the primary reason why serology is not recommended for evaluating H. pylori treatment success?Â
A) Serological tests are less sensitive than stool antigen and urea breath tests.
B) Antibody levels can remain elevated for months to years after infection is eradicated.
C) Serological tests lack the ability to detect IgG antibodies accurately.
D) Serology tests have a specificity of less than 50%.