Purpose: To test the compatibility of trisodium citrate, a catheter lock solution, with iodinated contrast medium.
Methods: Iohexol, iobitridol, iodixanol, ioxaglate, ioxithalamate, iomeprol, and iopromide were tested. In all tests, 2 ml of contrast medium were mixed with 2 ml of trisodium citrate solution.