Which core monitoring modalities are recommended for all procedural sedations?

• A. Only pulse oximetry and blood pressure
• B. EEG monitoring
• C. Invasive arterial line for all patients
• D. Continuous pulse oximetry, ECG, noninvasive BP, and capnography when available; ongoing clinical assessment of airway and ventilation.

Answer: (D)

In procedural sedation, safety hinges on continuously watching oxygenation, ventilation, and circulation while actively assessing the airway. The best set of monitors combines continuous pulse oximetry, ECG, noninvasive blood pressure, and capnography when available, along with ongoing clinical evaluation of airway and ventilation. Pulse oximetry shows how well the blood is carrying oxygen, but capnography provides real-time feedback on ventilation by measuring end-tidal CO2, often revealing hypoventilation or apnea before oxygen saturation drops. ECG adds a check on heart rhythm and potential rhythm-related issues, while noninvasive blood pressure tracks hemodynamic stability. Capnography is highly recommended whenever feasible because it detects ventilation problems early, which is critical during sedation. Ongoing clinical airway assessment—watching for obstruction, chest movement, airway patency, and breathing effort—remains essential even with these monitors. Invasive arterial line monitoring isn’t required for every patient, and EEG monitoring isn’t routinely used for standard procedural sedation, as neither offers the broad, practical safety benefits needed in most cases.