Called WN, had them drop the number and re-add (as others have said to do), but it still didn't work. Same deal for second existing reservation. Many here have said that you should get it if you add the number after the fact, but it didn't work for me. Tried every work around and spent time talking to the WN folks on the phone... to no avail. Only starting getting precheck for reservations booked after adding the KTN to my WN profile.
1 You may drink water, as much water as you can would be helpful, until arrival. 2  Routine medications may be taken, unless you have been instructed otherwise. If you are diabetic, you may take your diabetes medication no less than 4 hours prior to the exam.  Arrive 15-30 minutes before your PET scan.
This order is. placed by the referring physician. The Day of Your Exam. Plan on being at the testing center for approximately 3 hours. Due to the nature of the medication used, pregnant women and children are. not allowed in the uptake rooms. Do not eat, drink (except water) or chew gum for 6 hours prior to your scan. You may take your regularly scheduled medications, except insulin, with. water, prior to your scan. Wear comfortable, loose fitting clothing with minimal metal and avoid wearing. jewelry. Diabetics: Do not take your insulin the day of your exam.