Mrs. Miller is orotracheally intubated with a size 7.5 mm ET…

Mrs. Miller is оrоtrаcheаlly intubаted with a size 7.5 mm ETT. It has been determined that Mrs. Miller's ETT needs tо be replaced. The physician has instructed you to change the tube with a tube exchanger. According to the CXR, Mrs. Miller's ETT is 3 cm above the carina. Refer to the image below to answer the following question. Using the ETT placement at the corner of the mouth as your landmark, the safest minimal to maximal depths to insert and maintain the tube exchanger during the exchange is: ET tube position.png