<prompt> Bag and mask ventilation is contraindicated in newborn resuscitation with clinical suspicion of ?Diaphragmatic herniaIntracranial hemorrhageMeconium aspirationPneumothorax  <response>: Ans. a A diaphragmatic herniaRef: OP Ghai 8th ed.129Bag and mask will lead to over-distention of the stomach which is already lying on the pleural surface. This will worsen the mediastinal shift and compress the ipsilateral lung further leading to worsening of the patient. 