Who to Test
Testing for CKD should not be universal, but should be targeted for individuals at increased risk of developing CKD:
How to Test
For accurate diagnosis, retest eGFR, random urine ACR (albumin:creatinine ratio) and Urinalysis if not tested in the prior 6 months.
In patients with a new finding of reduced eGFR, repeat eGFR to exclude causes of acute deterioration of eGFR (e.g. acute kidney injury, or initiation of ACEi or ARB therapy).
In patients with a previous finding of an abnormal eGFR and ACR in the past 6 months, you do not have re-test.