Author Question: A home care patient will be receiving nasal O2 at 0.5 L/min using a large compressed gas cylin-der. ... (Read 42 times)

biggirl4568 · **on:** Jul 16, 2018

A home care patient will be receiving nasal O2 at 0.5 L/min using a large compressed gas cylin-der. Which of the following additional equipment would you specify for this patient?

1. Bubble humidifier
2. Pressure-reducing valve
3. Calibrated low-flow flowmeter
a. 1 and 2 only
b. 1, 2, and 3
c. 2 and 3 only
d. 1 and 3 only

Question 2

What is the primary use of compressed O2 cylinders in alternative settings? 1. Ambulation (small cylinders) 2. Backup supply (large cylinders) 3. Primary supply (large cylinders)

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

briezy · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: C
In addition to the cylinder gas, a pressure-reducing valve with flowmeter is needed to deliver O2 at the prescribed flow. Standard clinical flowmeters deliver flows up to 15 L/min; flows used in alternative settings are typically in the 0.25 to 5.0 L/min range. For this reason, the respiratory therapist should select a calibrated low-flow flowmeter whenever possible. Alternatively, a preset flow restrictor can be used.

Answer to Question 2

ANS: A
The primary use of compressed O2 cylinders in alternative settings is for either ambulation (small cylinders) or as a backup to liquid or concentrator supply systems (H/K cylinders).