BUN/Creatinine Ratio?

Dear beautiful community, I did my yearly blood work and it’s shows

BUN/Creatinine Ratio

Moderately High 26

Is this something to worry about? I did keto three years ago and loved it. Then stopped and now restarted . I am confused if red meat is bad for my kidneys I have to stop protein. I can’t do keto without protein. I love meat. Any suggestions would be helpful Btw . I am going to see my doctor soon but I believe in people who had or has similar experiences then doctors.