Twelve hours after cardiac surgery, the nurse is assessing a 3-year-old who weighs 15 kg. The nurse should notify the surgeon
about which of the following clinical findings?
1. A urine output of 60 mL in 4 hours.
2. Strong peripheral pulses in all four extremities.
3. Fluctuations of fluid in the collection chamber of the chest drainage system.
4. Alterations in levels of consciousness
