Upper GI endoscopy is indicated in all except
**Core Concept**
Upper GI endoscopy is a diagnostic procedure used to visualize the upper gastrointestinal tract, including the esophagus, stomach, and duodenum. It is indicated for various conditions such as dysphagia, abdominal pain, bleeding, and to obtain tissue samples for histopathological examination.
**Why the Correct Answer is Right**
The correct answer is **A** (insert correct option letter here), which is **Oesophageal atresia**. Upper GI endoscopy is contraindicated in oesophageal atresia due to the risk of perforation, as the endoscope may not pass through the atretic segment. The procedure is also not indicated in this condition as it does not provide any diagnostic or therapeutic benefit.
**Why Each Wrong Option is Incorrect**
* **Option A:** Oesophageal atresia, as mentioned earlier, is a contraindication for upper GI endoscopy.
* **Option B:** Gastric ulcer is an indication for upper GI endoscopy, as it allows for visualization of the ulcer, collection of biopsy samples, and potential therapeutic interventions such as cauterization or clipping.
* **Option C:** Dysphagia is a common indication for upper GI endoscopy, as it allows for visualization of the esophagus and identification of potential causes such as strictures, tumors, or esophagitis.
* **Option D:** Abdominal pain is a common symptom that may require upper GI endoscopy, as it allows for visualization of the upper GI tract and identification of potential causes such as ulcers, inflammation, or tumors.
**Clinical Pearl / High-Yield Fact**
A key consideration when performing upper GI endoscopy is the risk of perforation, which can occur due to various factors such as atretic segments, strictures, or excessive air insufflation. It is essential to carefully evaluate the patient's anatomy and medical history before proceeding with the procedure.
**Correct Answer:** A. Oesophageal atresia.