Husband got his renal test done createnine raised from 0.85 to 0.88 in 4 months and urea declined from 21 to 16.is rise in createnine normal? he is 5'4 and weighs 86 kgs,overweight.he is 38 years old.why rise in createnine is this normal or high end?

These amounts of change in creatinine and blood urea nitrogen (BUN) are entirely normal and to be expected with repeated testing. His kidney function appears to be fine. This is nothing to worry about.

This reading of creatinine is a in a normally variable range as is the BUN so no worries. Re weight he has to lose weight preferably under the guidance of a professional.