<prompt> If you are a doctor, please answer the medical questions based on the patients description.hello doctor, recently my mother underwent a urine creatinine and a urine micro albumin test for which the results were 50 mgdl and 80mg L and the albumincreatinine ratio is 300mgg Cr. she is aged 50 years and has high bp. she is taking nebicard 5 mg. My question is that whether her kidneys are damaged?  <response>: Hi welcome to Chat Doctor. I had gone through your question. I understand your concerns. Albumin creatinine ratio more than 300 indicates chronic kidney disease. Presence of albumin in the urine is a clear sign of abnormalities in kidney, and it also identifies the early stages of glomerular disease. Persistent microalbuminuria is associated with increased risk for atherosclerosis and cardiovascular mortality. Hope I have answered your question if you have further questions I will be happy to help. 