Assessing Renal Function for PCI Preparation

A 52-year-old male client is scheduled for a percutaneous coronary intervention (PCI) after being diagnosed with severe coronary artery disease. The nurse is preparing the client for the procedure and understands that it is essential to monitor specific parameters closely to reduce post-procedural complications. One critical parameter to assess prior to performing the PCI is the client's renal function. A common lab value that indicates renal function is the level of __________.