While monitoring a patient receiving +12 cm H2O flow-mask ...

[EY67]

While monitoring a patient receiving +12 cm H2O flow-mask continuous positive airway pres-sure, you note that the pressure drops to +6 cm H2O during inspiration, but returns to +12 cm H2O during exhalation.
 
  Which of the following would likely correct this problem?
  a. Check and correct any mask leaks.
  b. Check and correct any outflow obstruc-tion.
  c. Increase the system flow.
  d. Increase the system pressure.

Question 2

Which of the following are essential components of a continuous positive airway pressure (CPAP) flow system?
 
  1. Blended source of pressurized gas
  2. Nonrebreathing circuit with reservoir bag
  3. Low-pressure or disconnect alarm
  4. Expiratory threshold resistor
  a. 3 and 4 only
  b. 1, 2, and 4 only
  c. 1 and 4 only
  d. 1, 2, 3, and 4

[fromAlphatoOmega22]

Answer to Question 1

ANS: C
Flow is adequate when the system pressure drops no more than 1 to 2 cm H2O during inspiration.

Answer to Question 2

ANS: D
A breathing gas mixture from an oxygen blender flows continuously through a humidifier into the inspiratory limb of a breathing circuit. A reservoir bag provides reserve volume if the patient's inspiratory flow exceeds that of the system. The patient breathes in and out through a simple valveless T-piece connector. A pressure alarm system with manometer monitors the CPAP pres-sure at the patient's airway. The alarm system can warn of either low (usually due to a disconnec-tion) or high system pressure. The expiratory limb of the circuit is connected to a threshold resis-tor, in this case a water column (H).

[EY67]

Thank you

[fromAlphatoOmega22]

No problemo