The baby born at 23-weeks-gestation is 6 hours old when a pneumothorax develops and the patient decompensates rapidly. Despite stabilization of the airway and evacuation of the pneumothorax, the baby is not responding to chest compressions and intravenous epinephrine and is deemed unlikely to survive. The parents request the baby to be baptized before life-saving interventions are ceased. The chaplain is called but is unable to make it to the hospital immediately. Which action by the nurse is most appropriate?