Answer:
When the patient returns 1000 ml of urine from the bladder at once.
Step-by-step explanation:
Urinary retention is a medical term referring to the inability to fully or partially empty the bladder. The person suffering from this disorder is unable to start urination (or if they can start, they are unable to finish).
Overdistention refers to the swelling or stretching of an organ. In this case, acute overdistention would refer to the swelling or inflation of the bladder, due to urinary retention.
Relieving a patient of 1000 ml of urine at one time will relieve a lot of stress on the bladder and kidneys.