What is the difference between nursing diagnoses and collaborative problems?

The nurse receives a 12-year-old girl from the operating room after an emergent appendectomy due to ruptured appendix. Upon arrival to the postanesthesia care unit, the patient is drowsy, but arousable to voice; she was extubated in the operating room and is receiving oxygen by facemask at 40%. She has two peripheral IVs in her left arm that are infusing Lactated Ringers solution at 100 mL/hr. A nasogastric tube is attached to low constant suction, and a small amount of aspirate is noted. She has a urinary catheter that is draining clear, yellow urine. Her abdominal dressing is dry and intact. Upon arousal, she complains of abdominal pain.

1. What NANDA-approved nursing diagnoses may be relevant to this patient?
2. Once the nursing diagnoses are determined, what steps does the nurse take to complete the Planning Phase of the Nursing Process?
3. What is the difference between nursing diagnoses and collaborative problems?