Anaesthesia Bag and mask ventilation is absolutely contraindicated in – A Tracheo-esophageal fistula with esophageal atreasia and esophagus connected to trachea B Diaphragmatic hernia C Meconium aspiration D All of the above 💡 Explanation Bag and mask ventilation is absolutely contraindicated in – ✓ Correct Answer: D. All of the above