Glucose Test

I think I made a mistake guys. I was scheduling to make my appointment next week for the glucose test ( 1 hour ) and I put the glucose tolerance test down. I searched it up and it says that the tolerance test is done after the 1 hour one if the results are abnormal then the tolerance is to be done. So I’m not sure if I should cancel or not I have a paper that shows what test is suppose to be done, my sister says to just leave it since I have the paper and they’ll read it but I don’t wanna cause an inconvenience

Edit// I modified the appt to change the testing reason so I didn’t have to cancel the appointment entirely