O2-induced hypoventilation is more likely to occur with which ...

[littleanan]

O2-induced hypoventilation is more likely to occur with which oxygen-delivery device?
 
  a. Simple mask c. Venturi mask
  b. Nasal cannula d. Large-volume nebu-lizer

Question 2

A nasal cannula that delivers 5 L/min translates to what approximate FIO2?
 
  a. 36 c. 40
  b. 28 d. 44

[abro1885]

Answer to Question 1

ANS: A
Excessive amounts of oxygen can cause a patient with chronically elevated CO2 levels to hypoventilate because the oxygen can knock out the patient's hypoxic drive. The oxygen con-centration delivered can vary significantly and may cause ventilatory depression in patients with chronically elevated partial pressure of arterial CO2 (PaCO2) levels.

Answer to Question 2

ANS: C
The FIO2 increases approximately 4 for each liter of flow increase. If we begin with 20, then 5 L/min  4 = 20. And 20 + 20 = 40.

[littleanan]

Thank you

[abro1885]

No problemo