Final answer:
The appropriate action for a patient in the oliguric phase of acute kidney disease after surgery is to restrict fluids based on their urine output. High potassium foods and excessive protein are to be avoided to prevent further kidney strain.
Step-by-step explanation:
Caring for a patient in the oliguric phase of acute kidney disease after coronary artery bypass surgery requires careful management of fluid and electrolyte balance. The appropriate action in the plan of care would be to restrict fluids based on urine output. Providing foods high in potassium or offering high protein snacks between meals would not be appropriate due to the risk of overloading the compromised kidneys. While monitoring output from peritoneal dialysis may be part of the overall treatment process, it is not specified as a current action in this scenario.
Preventive care in kidney disease includes avoiding high-potassium foods and excess protein. Also, maintaining hydration to support kidney function while monitoring dietary intake can help preserve kidney health. Since acute kidney injury may have reversible aspects, interventions aim to stabilize the patient and avoid further damage to the kidneys.