Test Overview
i-Stat- amperometry
Performed at authorized locations by point of care operators. Glucose- used in the diagnosis, monitoring and treatment of carbohydrate metabolism disorders.
Analyte reference ranges are available in the i-Stat test procedure located on the POC website: https://www.pathology.med.umich.edu/point-of-car
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
•Specimens must be free of clots and fibrin strands.
•Prolonged tourniquet application (venous stasis) and forearm exercise may decrease pH due to localized production of lactic acid. This in turn can affect ionized calcium.
•Results may be affected in the following situations: hemolysis, traumatic draw, pumping fist during draw, extended delay between drawing and testing specimen, exposure to air, and obtaining specimen from an arm with an IV.
•Results outside the reportable ranges for the system will be display with a "<" or ">" symbol.
Test Details
2 minutes
Specimen Requirements
Collect in lithium heparin syringe/tube.
Samples must be tested within 30 minutes of collection and immediately after exposing the sample to room air.
Additional Information
For more test specific information, please refer to the test procedure found on the Michigan Medicine POC website: https://www.pathology.med.umich.edu/point-of-care.