The Alaris PCA module integrates a syringe-based patient-controlled analgesia (PCA) device with large volume pump (LVP), syringe, EtCO2and SpO2 modules on a single hardware platform. The module follows industry best practice recommendations for continuous EtCO2 and SpO2 monitoring. The PCA infusion pauses if the patient's respiratory parameter falls below hospital-defined EtCO2 or SpO2 limits. Guardrails MX drugs error reduction software helps reduce adverse drug events.