You are asked to provide continuous monitoring of the FiO2 ...

[ericka1]

You are asked to provide continuous monitoring of the FiO2 provided by a humidified O2 deliv-ery system using a galvanic cell analyzer. Where would you install the analyzer's sensor?
 
  a. Proximal to the heated humidifier
  b. On the expiratory side of the circuit
  c. Distal to the heated humidifier
  d. As close to the patient as possible

Question 2

Which of the following are true about invasive versus noninvasive monitoring?
 
  1. Invasive procedures require insertion of a device into the body.
  2. Laboratory analysis of gas exchange is usually noninvasive in nature.
  3. Physiologic monitoring can be either invasive or noninvasive.
  4. Invasive procedures provide more accurate data but carry greater risks.
  a. 2 and 4 only
  b. 1, 3, and 4 only
  c. 2 only
  d. 1, 2, 3, and 4

[ebonylittles]

Answer to Question 1

ANS: A
To avoid this problem during continuous use in humidified circuits, the clinician should place the analyzer sensor proximal to any humidification device.

Answer to Question 2

ANS: B
Invasive procedures require the insertion of a sensor or collection device into the body, whereas noninvasive monitoring is a means of gathering data externally. Because laboratory analysis of gas exchange requires blood samples, it is usually considered invasive. On the other hand, moni-toring can be either invasive or noninvasive. In general, invasive procedures tend to provide more accurate data than do noninvasive methods but carry greater risk.

[ericka1]

Thanks for the timely response, appreciate it

[ricroger]

Excellent