Author Question: The variable that ends inspiration during intermittent positive-pressure breathing therapy with a ... (Read 27 times)

melina_rosy · **on:** Jul 16, 2018

The variable that ends inspiration during intermittent positive-pressure breathing therapy with a Bird Mark 7 is:

a. time. c. volume.
b. flow. d. pressure.

Question 2

All intermittent positive-pressure breathing machines are required to have an operating gas pres-sure source of _____ lb force per square inch gauge (psig).

a. 25 to 35 c. 45 to 55
b. 35 to 45 d. 55 to 65

Brenm · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
The Bird Mark 7 is a pneumatically powered ventilator that will pressure-cycle during intermit-tent positive-pressure breathing therapy. If used for short-term mechanical ventilation, it could be time-cycled.

Answer to Question 2

ANS: C
Regardless of the manufacturer, all intermittent positive-pressure breathing machines require a 45-psig to 55-psig gas pressure source, such as a compressed gas cylinder, a bulk air or oxygen system, or an air compressor.