A comparison of measurements of sodium, potassium, haemoglobin and creatinine between an Emergency Department-based point-of-care machine and the hospital laboratory.

Blood gas analysers provide electrolyte and metabolic data. In the author’s institution, these values were not used clinically because of the risk of inaccuracy. To discover whether this approach was warranted, we compared values from our Radiometer point-of-care (POC) analyser and the laboratory. A