Firstly we need to know the badeline
creatinine ( lowest level of creatinine in recent time).
UTI can also lead to raised creatinine.
At 2.1 dialysis is not required. Need to be monitored regularly
Once infection is treated creatinine may come down if baseline was normal.
Next Steps
regular monitring OF
Kidney function
treat infection
control
diabetes
Ultrasound KUB with PVR
Urine C/S CBC