Which values trend on the CDI venous saturation sensor of the ECMO pump?

The correct answer is rooted in the specific parameters that the venous saturation sensor is designed to monitor and provide information on. The venous saturation sensor, often utilized in the ECMO circuit, is pivotal for assessing the adequacy of oxygen delivery and the efficiency of the oxygenation process.

Hematocrit (Hct) and hemoglobin (Hgb) levels are crucial indicators of the blood's oxygen-carrying capacity, while mixed venous oxygen saturation (SVO2) reflects the balance between oxygen delivery and oxygen consumption in the body. These three values together give a comprehensive picture of the patient’s oxygenation status and help dictate adjustments in ECMO settings or additional therapeutic measures if needed.

In contrast, other options do not primarily relate to the sensory outputs of the venous saturation sensor. For example, pH and CO2 levels, although important in assessing metabolic and respiratory status, are typically monitored by different types of sensors. Likewise, heart rate and blood pressure are vital parameters but are assessed through other monitoring systems. Lastly, temperature and blood viscosity are important for overall patient monitoring but do not trend on this specific sensor related to venous saturation.

Thus, the focus on Hct, Hgb, and SVO2 accurately reflects what