Your mother's creatinine levels indicate that her kidney operation needs to be carefully managed. If feet are swollen, especially after salt intake, say 'fluid retention', which can be seen in kidney disease, is the main problem. Hemoglobin, which varies, is a good sign, but her history of urinary infections and occasional electrolyte issues necessitates deeper examination. The temporary increases in blood pressure might be caused by stress or other environmental factors. It is essential to watch her diet, reduce salt intake, and hydrate properly. I suggest scheduling regular check-ups with a nephrologist to explain her condition and regulate medication with a healthcare professional who can provide customized care