The results of some tests are intended to be interpreted when you have not eaten prior to your sample being collected. Examples include lipid panels and glucose tests. When fasting, drinking only water is permitted. If you do not fast, the results may be affected and/or may not be interpreted correctly. For some tests, your blood sample may be drawn when you have not fasted, and this information is noted on your records. Be sure to follow any fasting instructions you are given, and tell the person drawing your blood whether or not you have fasted.
