To set up electronic early warning system of AKI patients; To develop AKI's intervention, the follow-up process, and the renal physician is responsible for the implementation.

To Observe the method after implementing the treatment efficacy of AKI and the differences between the traditional treatment process.

To set up electronic early warning system according to KDIGO AKI diagnosis standard, real-time monitoring of hospitalized patients with renal function data, real-time detection of AKI patients, notify the diagnosis of renal physician; To develop AKI's intervention, the follow-up process, and the renal physician is responsible for the implementation.

To Observe the method after implementing the treatment efficacy of AKI and the differences between the traditional treatment process.

Inclusion Criteria:

Eligible participants were adults aged 18 years or older who were in hospital with stage 1 or greater acute kidney injury as defined by Kidney Disease Improving Global Outcomes creatinine-based criteria.

Exclusion Criteria:

Exclusion criteria were initial hospital creatinine 4•0 mg/dL (to convert to μmol/L, multiply by 88•4) or greater, fewer than two creatinine values measured, inability to determine the covering provider, admission to hospice or the observation unit, previous randomisation, or end-stage renal disease.

adult patients aged>18 years,with hospital-acquired acute kidney injury, from a university-affiliated hospital in Shanghai, China