What must be monitored for patients requiring physical or chemical restraints?

• A. Blood pressure monitoring only
• B. Continuous SpO2 and ETCO2 monitoring
• C. Cardiac monitoring as needed
• D. No monitoring required

Answer: (B)

When a patient needs restraints, there’s a real risk of respiratory depression from sedatives or impaired airway clearance. The best safety approach is continuous monitoring of oxygenation and ventilation: pulse oximetry (SpO2) and end-tidal CO2 (ETCO2). SpO2 shows how well oxygen is getting into the blood, while ETCO2 provides real-time feedback on ventilation and airway status. Sedatives can depress breathing quickly, and SpO2 may remain normal for a while even as ventilation worsens; ETCO2 detects hypoventilation or apnea early, allowing rapid intervention or reversal if needed. Relying only on blood pressure monitoring or waiting for cardiac monitoring as needed misses these critical respiratory changes, and no monitoring is inappropriate in this setting. So continuous SpO2 and ETCO2 monitoring best protects patients during physical or chemical restraints.