CVS Pharmacy Blood Glucose Test Strips - Instacart Step 1: Insert Truetest Test Strip. Step 2: Apply tiny blood sample. Store in a dry place at room temperature below 86 degrees F/30 degrees C. Do not refrigerate or freeze. For in vitro diagnostic use only. About. Details. For self-testing & point-of-care testing. Clinically proven accurate. 0.5 microliter sample size.