Final answer:
A nurse should relay the patient's urine output, recent dietary habits, and ambulation ability to the doctor regarding a patient experiencing complications from acute renal failure.
Step-by-step explanation:
When relaying information to a doctor about a patient experiencing complications from acute renal failure, a nurse should prioritize communicating the patient's urine output. Urine output is an important indicator of kidney function and can reveal if the patient's kidneys are able to properly filter waste from the blood.
Other pieces of information that may be relevant to share with the doctor include recent dietary habits, as certain dietary choices can affect renal function, and ambulation ability, as mobility issues can impact the patient's overall health and recovery.