To ensure patient safety, input data is checked against accepted values/ranges throughout the calculation process. When an input is restricted, click on the input name button, in this case, SrCr, to display the accepted range.
This example shows the window that describes the acceptable range for serum creatinine when the SrCr button is clicked. A warning will also appear in red text when the Enter key is pressed.
When a number has been entered, a conversion is performed when you switch units.