Which of the following types of oxygen analyzers are generally ...

[frankwu]

Which of the following types of oxygen analyzers are generally used on current generation mechanical ventilators?
 
  A. polarographic O2 analyzers
  B. paramagnetic O2 analyzers
  C. fuel cell O2 analyzers
  D. thermal conductivity O2 analyzers

Question 2

The therapist has been requested to obtain a P0.1 measurement from a patient who is being mechanically ventilated. Which of the following conditions are requirements for this measurement?
 
  A. The patient must be sedated and paralyzed.
  B. The patient may be either breathing spontaneously or by controlled mechanical ventilation.
  C. The patient must be breathing spontaneously.
  D. This maneuver cannot be performed on a mechanically ventilated patient.

[olderstudent]

Answer to Question 1

ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: Fuel cell O2 analyzers are primarily used on most current generation mechanical ventilators.
D. Incorrect response: See explanation C.

Answer to Question 2

ANS: C
A. Incorrect response: See explanation C.
B. Incorrect response: See explanation C.
C. Correct response: The airway occlusion pressure (P0.1) is the negative airway pressure generated during the first 100 msec of an occluded inspiration. P0.1 is a parameter for the neuromuscular activation of the respiratory system, which is an important determinant for the work of breathing. It has been shown to be a good predictor for successful weaning from mechanical ventilation, and the patient must be breathing spontaneously.
D. Incorrect response: See explanation C.

[frankwu]

Excellent

[tkempin]

Gracias!