Pediatrics An 11 year child with failure to thrive, metabolic acidosis with increased anion gap. Not true regarding the differential diagnosis: A Insulin dependent diabetes mellitus B Chronic renal failure C Renal tubular acidosis D Inborn errors of metabolism 💡 Explanation An 11 year child with failure to thrive, metabolic acidosis with increased anion gap. Not true regarding the differential diagnosis: ✓ Correct Answer: C. Renal tubular acidosis