Author Question: Factors affecting a humidifier's performance include which of the following? 1. Surface area 2. ... (Read 53 times)

ereecah · **on:** Jul 16, 2018

Factors affecting a humidifier's performance include which of the following? 1. Surface area 2. Temperature 3. Time of contact 4. Outlet size

a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only

Question 2

Administration of dry gases at flows exceeding 4 L/min can cause which of the following? 1. Structural damage 2. Heat loss 3. Water loss

a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1, 2, and 3

Chou · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
The following four variables affect the quality of a humidifier's performance: (1) temperature, (2) surface area, (3) time of contact, and (4) thermal mass.

Answer to Question 2

ANS: D
Administration of dry medical gases at flows greater than 4 L/min to the upper airway causes immediate heat and water loss and, if prolonged, causes structural damage to the epithelium.