i-Stat - ion-selective electrode potentiometry (Na, K, Cl, BUN), amperometry (creatinine, glucose), conductometry (hematocrit), Hemoglobin (calculated, HCT% X0.34)
Point of Care iSTAT testing is available in certain nursing units and procedure areas and is performed by authorized operators in those areas.
Reference ranges are available in the iStat CHEM 8+ test procedure located on the POC website: https://www.pathology.med.umich.edu/point-of-care
* 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 excercis may decrease pH due to localized production of lactic acid. This in turn can affect ioniazed 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.
Collect in lithium or sodium heparin syringe/tube.
Samples must be tested within 30 minutes of collection and immediately after exposing the sample to room air.
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