You know both the cause of and the solution to your problem...in fact, you said it yourself:
Quote from WickerRN
I know I should slow down, but I get really anxious at times when i'm in the med room and 3-4 nurses are waiting for me so they can get on the pyxsis. Now i'm recounting all the meds at least 3 times to make sure I get the right count.
When it comes time to count, that's all your should be doing: slow down and focus on the count. Unless a bona-fide code is going on, those 3-4 nurses can wait the extra 15-30 seconds it will take you to carefully count.
As far as counting multiple times...almost every Pyxis I've ever used will warn you if you enter an incorrect count. It's only when you enter a second
incorrect count that a discrepancy is created. While I don't blame you for counting multiple times right after this, the fact is that provided you slow down and focus on counting, you should really only need to count once. If the Pyxis warns you that the count is incorrect, then count again.
Also, be sure that you are entering the correct count number in. That touch screen can be fickle at times and can misread your touch (happens to me on occasion: 26 will read as 6 because the Pyxis didn't register the 2, or it could read as 266 because it registered the 6 twice). So before you submit the count, eyeball the screen to make sure the number you entered is the actual number you meant to enter.