How should you verify King LT-D placement?

• A. Capnography waveform
• B. Chest rise
• C. Bilateral breath sounds
• D. All of the above

Answer: (D)

Verifying placement of a King LT-D relies on multiple checks to confirm that ventilation is actually reaching the lungs. Capnography provides objective evidence of ventilation; a consistent CO2 waveform means gas is flowing through the airway into the lungs and back for exhalation. Chest rise with each ventilation confirms that air is being moved into the lungs. Bilateral breath sounds help ensure air is entering both lungs and that placement isn’t causing unilateral ventilation or misposition. Using all three together gives the strongest reassurance that the device is in the correct position and functioning properly. Relying on just one sign can be misleading, so combine capnography, chest rise, and bilateral breath sounds to verify King LT-D placement.