In LMNOP, what does 'O' represent?

• A. Assess O2 and end-tidal capnography
• B. Oral hygiene assessment
• C. Oxygen saturation only
• D. Observational vitals monitoring

Answer: (A)

O stands for oxygenation and ventilation monitoring. In this part of LMNOP, you assess how well the patient is being oxygenated and use end-tidal capnography to monitor ventilation and verify airway patency or placement. Capnography provides real-time feedback on breathing efficiency and can quickly reveal problems—like tube dislodgement, poor ventilation, or developing airway obstruction—that pulse oximetry alone might miss. That’s why evaluating O2 delivery and end-tidal CO2 is the best fit for this component. The other options don’t address ventilation monitoring or the combination of oxygenation with capnography.