<prompt> Answer this question truthfullyWhat is the connection between non-ST elevation myocardial infarction and chronic kidney disease?  <response>: <reason> Class I 1. Creatinine clearance should be estimated in UA NSTEMI patients and the doses of renally cleared medications should be adjusted according to the pharmacokinetic data for specific medications. Level of Evidence: B 2. Patients undergoing cardiac catheterization with receipt of contrast media should receive adequate preparatory hydration. Level of Evidence: B 3. Calculation of the contrast volume to creatinine clearance ratio is useful to predict the maximum volume of contrast media that can be given without significantly increasing the risk of contrast-associated nephropathy. Level of Evidence: B Class IIa 1. An invasive strategy is reasonable in patients with mild stage 2 and moderate stage 3 CKD. Level of Evidence: B There is insufficient data on benefitrisk of invasive strategy in UA NSTEMI patients with advanced CKD stages 4, 5 