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Author Question: Which of the following are associated with sidestream capnographs? 1. Delayed reporting times 2. ... (Read 29 times)

Pineapplelove6

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Which of the following are associated with sidestream capnographs? 1. Delayed reporting times 2. Addition of dead space to the airway 3. Increased risk of inappropriate extubation 4. Increased risk of plugging of the sample tubing
 
  a. 1 and 2 c. 2 and 4
  b. 1 and 3 d. 3 and 4

Question 2

A normal capnogram contains the most CO2 during which of the following phases?
 
  a. 1 c. 3
  b. 2 d. 4



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akemokai

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Answer to Question 1

ANS: B
Sidestream capnographs show a slight delay between sampling and reporting times because of the time required to transport the sample from the airway to the sample chamber. The plastic tube that transports sample gas from the airway to the analyzer is prone to plugging by water and se-cretions, and therefore can lead to erroneous readings.

Answer to Question 2

ANS: C
During phase 1, there is essentially no CO2 because the gas is from the patient's dead space. In phase 2, CO2 from the alveoli mixes with gas from the smaller airways, causing the CO2 concen-tration to rise. During phase 3, the CO2 concentration curve remains at its highest level as alveolar gas is exhaled. Inspiration causes the measured exhaled CO2 level to fall to 0; this is phase 4.




Pineapplelove6

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Reply 2 on: Jul 16, 2018
Wow, this really help


strudel15

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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