An inkjet printer includes a print head having a width corresponding to a width of a sheet of paper. The use of MTACunMTACc enables examination of the future peritoneal function of a patient. The diagnostic module controls the fuel pump control module to provide a predetermined amount of fuel to the fuel rail, determines an estimated pressure increase within the fuel rail based on the predetermined amount of fuel, and compares an actual pressure increase within the fuel rail to the estimated pressure increase. The first protective layer includes thermoplastic copolymers prepared from styrene, acrylonitrile, and optionally other addition-polymerizable monomers such as acrylate monomers, vinylbenzyl chloride, and diesters of maleic acid or fumaric acid.