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...

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.