Fig 1. Comparison between central lab arterial and Precision PCx arterial blood glucose measurements.

Blue lines represent the mean difference and 95% limits of agreement. Dotted line represents zero. Lab and Precision PCx measurements ≤ 20 mg/dL were considered as 20 mg/dL and measurements ≥ 600mg/dL considered as 600 mg/dL. These are the Precision PCx limits of detection according to the manufacturer.