What is the purpose of the additional side port (Murphy eye) on most modern endotracheal tubes?
a. Protect the airway against aspiration.
b. Help ascertain proper tube position.
c. Minimize mucosal trauma during insertion.
d. Ensure gas flow if the main port is blocked.
ANS: D
In addition to the beveled opening at the tip, there should be an additional side port or "Murphy eye," which ensures gas flow if the main port should become obstructed. The tube cuff is perma-nently bonded to the tube body. Inflation of the cuff seals off the lower airway, either for pro-tection from aspiration or to provide positive pressure ventilation.
You might also like to view...
Despite the importance of training and education, agencies and fire departments vary in their support of education and training for their members. Often the amount and kind of training they encourage are based on __________
Fill in the blank(s) with correct word
Which group of patients is most likely to develop pneumonia subsequent to large-volume aspira-tion?
a. Acute respiratory distress syndrome b. Alcohol toxicity c. Diabetes mellitus d. Obstructive sleep apnea
Which of the following is NOT true about breast cancer?
A) It is the most common cancer in women. B) Most breast cancers are ductal, starting in the milk ducts. C) Breast cancer affects one in seven women at some point in their lifetime. D) Lobular breast cancer starts in the lobules that produce milk.
Which of the following is not a benefit of massage?
A. Increased heart rate B. Increased blood circulation C. Improved concentration D. Lower blood pressure E. Lower stress level