Free gas in abdomen (under the diaphragm) can be best diagnosed by which X–ray –: (A) Standing, (B) Right lateral recumbent view, (C) Left lateral recumbent view, (D) Sitting position
Answer is A. The best view to see pneumoperitoneum is Chest X-ray (not abdominal X-ray) in upright position which detects air under the domes of diaphragm.