2458Display Shows Possible Cause(s) Possible Solution(s)e-53 Bad Testerrorj A meter or test strip error hasoccurred.j Discard the test strip and repeat the test.j Your blood sugar may beextremely high.j If this confirms how you feel, contact yourhealthcare professional immediately. If it does notconfirm how you feel, repeat the test and seechapter 2, “Testing Your Blood Sugar.” If this stilldoes not confirm the way you feel, run a controltest with your control solution and a new test strip.If the control result is within the acceptable range,review the proper testing procedure and repeat yourblood sugar test with a new test strip. If the e-53error still appears for your blood sugar test, yourblood sugar result may be extremely high andabove the system’s reading range. Contact yourhealthcare professional immediately. If thecontrol result is not within the acceptable range,see chapter 3, “control Testing.”