We present an animal model used to evaluate the in vivo performance of electrochemical amperometric continuous lactate sensors compared to blood gas instruments. Electrochemical lactate sensors were fabricated. placed into 5 Fr central venous catheters (CVCs). and paired with wireless potentiostat devices. https://www.roneverhart.com/Back-Roads-Apparel-Circle-Back-Roads-Apparel-3x3/