For a 12-year-old with acute diarrhea, which test is used to confirm the diagnosis?

For a 12-year-old with acute diarrhea, which test is used to confirm the diagnosis?

• A. serum albumin & ESR
• B. abdominal ultrasound
• C. stool for ova & parasites
• D. Upper GI

Answer: (B)

When a child presents with acute abdominal symptoms, imaging that can directly visualize the intestines is most informative. Abdominal ultrasound is ideal here because it is safe, quick, and highly effective at confirming certain structural causes of abdominal pain, such as intussusception, which can present with intermittent pain and diarrhea. The ultrasound can show the characteristic signs of telescoping of the bowel, guiding urgent management (and avoidance of radiation). Other options are less diagnostic for this scenario: serum albumin and ESR are nonspecific inflammatory markers, stool studies for ova and parasites identify infections but don’t confirm a structural bowel problem, and an Upper GI series is used for different proximal GI issues rather than evaluating acute diarrhea with possible abdominal pathology. In this context, ultrasound provides the most definitive confirmation of a potential acute abdominal diagnosis.

When a child presents with acute abdominal symptoms, imaging that can directly visualize the intestines is most informative. Abdominal ultrasound is ideal here because it is safe, quick, and highly effective at confirming certain structural causes of abdominal pain, such as intussusception, which can present with intermittent pain and diarrhea. The ultrasound can show the characteristic signs of telescoping of the bowel, guiding urgent management (and avoidance of radiation). Other options are less diagnostic for this scenario: serum albumin and ESR are nonspecific inflammatory markers, stool studies for ova and parasites identify infections but don’t confirm a structural bowel problem, and an Upper GI series is used for different proximal GI issues rather than evaluating acute diarrhea with possible abdominal pathology. In this context, ultrasound provides the most definitive confirmation of a potential acute abdominal diagnosis.