<prompt> Answer this question truthfullyWhat does PCI Staged mean?  <response>: <reason> More detailed informed consent can be provided regarding the proposed revascularization procedure and the potential alternatives such as CABG. Patients who are at risk of contrast induced acute tubular necrosis patients over age 65, patients with diabetes, patients with impaired renal function, may benefit from a staged PCI procedure by minimizing the dye load required during two separate procedures.Three factors have been associated with an increased risk of contrast-induced nephropathy: pre-existing renal insufficiency such as Creatinine clearance 60 mLmin 1.00 mLs - online calculator, pre-existing diabetes, and reduced intravascular volume. A clinical prediction rule is available to estimate probability of nephropathy increase 25 andor 0.5 mgdl in serum creatinine at 48 h based upon the following risk factors:Systolic blood pressure 80 mm Hg - 5 points Intraarterial balloon pump - 5 points Congestive heart failure Class III-IV or history of pulmonary edema - 5 points Age 75 y - 4 points Hematocrit level 39 for men and 35 for women - 3 points Diabetes - 3 points Contrast media volume - 1 point for each 100 mLRenal insufficiency: Serum creatinine level 1.5 gdL - 4 points OR Estimated Glomerular filtration rate online calculator2 for 4060 mLmin1.73 m2 4 for 2040 mLmin1.73 m2 6 for 20 mLmin1.73 m25 or less pointsRisk of CIN - 7.5 Risk of Dialysis - 0.04610 pointsRisk of CIN - 14.0 Risk of Dialysis - 0.121116 pointsRisk of CIN - 26.1 Risk of Dialysis - 1.0916 pointsRisk of CIN - 57.3 Risk of Dialysis - 12.8 