Hematocrit levels can affect results whether the sample is obtained from forearm or from fingerstick. Hematocrit levels less than 30% may cause falsely high readings and hematocrit levels greater than 55% may cause falsely low readings. If the customer does not know their hematocrit level, they should consult their health care professional. Hematocrit levels may be affected by too much squeezing during site preparation.

Please check the Owner's Manual, Abbreviated Procedure Guide or 3D Interactive Quick Start Guide for Testing Technique. For more information, please call our Customer Care line at : 0800 121200 (UK) 1800 535676 (Ireland) or send us an e-mail.