[. . . ] 5 Apply the drop of blood and read the result Touch and hold the drop of blood to the narrow channel in the top edge of the test strip. Keep holding the drop of blood to the top edge of the test strip until the confirmation window is full. If your sample does not fill the confirmation window on the first try, do not add more blood to that strip. [. . . ] This may require immediate treatment according to your healthcare professional's recommendations. What it means: You may have a very high blood glucose level, over 600 mg/dL. If the result is HI again, obtain and follow instructions from your healthcare professional without delay. What it means: The meter has detected that the temperature is above or below the system operating range. Do not perform a test until the meter and test strips reach a temperature within the operating range of 43­111°F. You should repeat the test after the meter and test strips have reached a temperature within the operating range. What to do if results are too low or too high æCAUTION: Low glucose results If your test result is lower than 70 mg/dL or is shown as LO, it may mean hypoglycemia (low blood glucose). This may require immediate treatment according to your healthcare professional's recommendations. Although this result could be due to a test error, it is safer to treat first, then do another test. What it means: No result in memory, such as the first time use of the meter. You can still perform a blood glucose test and get an accurate test result. Contact LifeScan Customer Service at 1 800 227-8862 to report this occurrence if this is not your first time use of the meter. Call LifeScan Customer Service toll-free, 24 hours a day, 7 days a week English 1 800 227-8862 Or, Visit us at www. Com What it means: Error message indicates there is a problem with the meter. Apply a blood or control solution sample only after the blood drop icon R appears on the display. If this message continues to appear, contact LifeScan Customer Service at 1 800 2278862. The system described herein is covered by one or more of the following U. Use of the monitoring device included herein is protected under one or more of the following U. [. . . ] What it means: When the symbol appears on the display by itself, the meter battery does not have enough power to perform a test. When replacing the battery, be sure to place it within the fold of the ribbon, then push the battery until it snaps into place. What it means: Meter battery is low but there is enough power to perform a test. [. . . ]