The benefits of renin angiotensin system (RAS) blockers and diuretics for blood pressure control are well-established in chronic kidney diseases (CKD) patients; however, these agents may become hazardous on "sick-days" that lead to volume depletion (dehydration), and increase the risk of kidney function loss and acute kidney injury (AKI). It is not known how frequent significant sick-days occur in CKD patients, or whether a patient self-managed Sick-Day Protocol (SDP) that temporarily holds RAS blocker, diuretics, or other high risk medication in an effort to preserve renal function, or prevent AKI. The purpose of the study is to asses if a SDP, monitored remotely with a weekly automated phone survey , can improve outcomes in CKD (such as slow renal function loss and AKI episodes) and reduce preventable service utilization versus usual care.