Chapter 6: Technical Information 83Information for Healthcare ProfessionalsHealthcare Professionals: Follow the infection control procedures appropriate for yourfacility.Decisions about whether to recommend alternative site testing (AST) should take into account the motivationand knowledge level of the patient and his or her ability to understand the considerations relative to diabetesand AST. If you are considering recommending AST for your patients, you need to understand that there is apotential for a significant difference between fingertip and alternative site blood glucose test results. Thedifference in capillary bed concentration and blood perfusion throughout the body can lead to sample site-to-site differences in glucose results. These physiological effects vary between individuals and can vary within asingle individual based upon his or her behavior and relative physical condition. Our studies involving AST ofadults with diabetes show that most persons will find their glucose level changes more quickly in the fingers’blood than the alternative sites’ blood.* This is especially important when glucose levels are falling or risingrapidly. If your patient is used to making treatment decisions based upon fingertip readings, he or she shouldconsider the delay, or lag-time, affecting the reading obtained from an alternative site.*Data on file.