Which of the following lumens will not appear on a ...

[Haya94]

Which of the following lumens will not appear on a cross-sectional view of a triple-lumen pul-monary artery catheter at 20 cm back from the tip?
 
  a. Distal c. Proximal
  b. Inflation d. Thermistor

Question 2

Other than air, the gas that is commonly used to inflate the balloon on a pulmonary artery cathe-ter is:
 
  a. helium. c. oxygen.
  b. nitrogen. d. carbon dioxide.

[marict]

Answer to Question 1

ANS: C
The proximal port of a triple-lumen pulmonary catheter is located 30 cm back from the tip of the catheter.

Answer to Question 2

ANS: D
CO2 is sometimes used to inflate the balloon because if the balloon should rupture, the CO2 is absorbed by the tissues rather than causing an air embolism.

[Haya94]

TYSM

[nyrave]

Thanks for the timely response, appreciate it