ISTAT Potassium in ED: Accurate?
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The nursing staff and I work closely to implement the gold standard in POC in the ED We are interested in switching from the ePOC and Triage TNI to the ISTAT and possibly adding potassium.
HAS ANYONE HAD ISSUE WITH THE POTASSIUM RESULTS RUNNING HIGH OR LOW OR ANY PROBLEMS AT ALL?
Your feedback is important. Thank you.
Ann
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Ditto Cathy’s response. We have performed Chem 8 (has Potassium) in the ED for years. We also run
Lactacte Acid on the i-Stat in the ED. Hemolysis has been our only issue. We have a CBL for Blood
Collection that is required for staff drawing blood, also have posters in the ED on ways to prevent
Hemolysis.
Dorothy Kicklighter
Point of Care Coordinator
FirstHealth
OF THE CAROLINAS
910-715-1183
dkicklighter@firsthealth.org
We use it in our ed and other locations in the hospital. It is very accurate when drawn correctly. ie no contamination from an iv or avoiding hemolysis. When training we really stress if you get a result you are not expecting redraw and rerun. We also really stress hemolysis.
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Echo everyone else's responses. The iSTAT K+ assay itself is very reliable - aqueous QC typically shows SDs of <0.1. It's the sample collection that's typically the issue, as in most settings nurses opt to draw from an IV start setup. Although we train and train about how to avoid hemolysis, it still happens. If iSTAT at least had an indicator or error code of some sort that would clearly indicate to the user when a sample was hemolyzed, it'd be great. But every time I discuss it with my vendor/rep, he indicates there is no plan to incorporate such a thing into iSTAT technology, unfortunately.