Right now our facility will extend PreAdmit patient samples for 10 days. This means the patient hasn't had any transfusions or been pregnant in the last 3 months. Also the patient would be having surgery within 10 days of the specimen being collected. Now some of our Dr.'s would like to have patients come in as early as 28 days before surgery to have their PreAdmit labs drawn. Is anyone else doing this? If so how do you handle your manufacture inserts and transfusion reactions? Do you perform crossmatches on the day of surgery? Did you validate anything before swapping to a longer date? Any information would be greatly appreciated.