What is normal for bun and creatinine post kidney removal? my grandfather's bun: 28 and creatinine: 2.05. he is 3 weeks post surgery.

No exact answer. But: This value ofcreatinine of 2 after removal of one kidney is not normal. It should be closer to 1.0 or so. However, if grandfather is in his seventies and about 160-170 pounds, his kidney function is near 50% or so. In his age group, his kidney function should be near 70% or so. He has probably an aging of his kidneys beyond his actual age. Need to ask his doc about reason. Hi blood pressure?