A recent urinalysis shows protein and blood in urine. blood tests are showing BUN and creatinine are elevated. So, is this kidneys or bladder. I am drinking a lot of water. Waiting for a call back for appointment with nephrologist. Am wondering of BP meds did this, or possibly Actemra. Or, can PMR/GCA cause kidney issues, not to mention prednisone. Anyone else have similar issues.