Figure 5 A layered approach to the follow-up of patients with acute kidney disease (AKD) Figure 5 | A layered approach to the follow-up of patients with acute kidney disease (AKD). The severity of AKD should determine the frequency and intensity of follow-up care. Patients with more severe AKD should receive nephrology follow-up if feasible. Key modifiers that should prompt more frequent follow-up and assessment of kidney function are the presence of pre-existing chronic kidney disease, congestive heart failure, cirrhosis, and/or malignancy. Modified from Acute Dialysis Quality Initiative 16; www.adqi.org. Modified from Acute Dialysis Quality Initiative 16; www.adqi.org. Chawla, L. S. et al. (2017) Acute kidney disease and renal recovery: consensus report of the Acute Disease Quality Initiative (ADQI) 16 Workgroup Nat. Rev. Nephrol. doi:10.1038/nrneph.2017.2