Thanks for the query.
If there is mild dilatation of the pelvi calyceal system it could be due to a small stone which has passed.
is 0.9 which is normal, thus the renal function appears normal.
At this point if there is no pain, bleeding or difficulty in passing urine a follow up scan in few weeks is advisable.
It is also important to keep the blood sugars and blood pressure under control to prevent long term damage to the kidneys.