week 2 - anesthesia machines

Question 0

Computer-driven machines should be turned ___ and restarted every __ hours, this is called a __-___

Answer 0

off
24
self-checkout

Question 1

Anesthesia workstations and their components are covered by the ____

Answer 1

American Society for Testing and Materials (ASTM)

Question 2

Only __ __ should by plugged into the machine’s electrical outlets.

Answer 2

anesthesia monitors

Question 3

The backup battery power should last at least __ minutes

Answer 3

30

Question 4

When gas travels from the high pressure cylinder to the machine, a ___ ___ decreases pressure to __ psig.

Answer 4

pressure regulator

50

Question 5

The __ __ orients and supports the cylinder, provides a __ __ seal, and ensures ____ flow.

Answer 5

hanger yoke
gas tight
unidirectional

Question 6

Three components exposed to high pressure are

Answer 6

hanger yoke
cylinder pressure gauge
cylinder pressure regulators

Question 7

Check valves allow gas to enter the machine but prevent gas from exiting the machine when __

Answer 7

there is no cylinder in the yoke

Question 8

Cylinder and pipeline pressure gauges are __ __ which stretch with pressure and point to correct pressure (“___” gauges)

Answer 8

metal needles

“Bourdon” gauges

Question 9

Three pneumatic components of the intermediate pressure system include the __

Answer 9

master switch,
oxygen failure devices,
flow control devices

Question 10

Four accessories supplied by oxygen include __

Answer 10

ventilators
accessory flowmeters
jet ventilation
oxygen flush

Question 11

__ __ direct a high unmetered flow directly to the __ __ __ (35-75 L/min) and do not require activation of the __ __

Answer 11

Flush buttons
common gas outlet
master switch

Question 12

Four flush hazards include __

Answer 12

leaks
sticking and obstructing flowmeter output
barotrauma
awareness

Question 13

Machines possess a pneumatic or electronic alarm device that sounds a warning when the oxygen supply pressure decreases to below __ psig

Answer 13

30

Question 14

The “__ __” valve (oxygen pressure sensor shut-off valve) will decrease supply of other gases as the oxygen supply pressure decreases, typically below __ to __ psig.

Answer 14

“fail-safe”

20-25 psig

Question 15

Reducing devices just upstream of flow valves decrease pressure a second time (__ to __ psig)

Answer 15

15-19 psig

Question 16

Four machine components exposed to low pressure systems include __

Answer 16

flowmeter tubes
vaporizers
check valves
common gas outlet

Question 17

The most common means of regulating flowmeter rate is a __ __

Answer 17

needle valve

Question 18

Traditional flowmeters are __ tubes, which are vertical glass tubes tapered with its __ diameter at the bottom

Answer 18

Thorpe

smallest

Question 19

Physical properties of the gas affect the flowmeter indicator and include __, __, __ of the float, and __ of the tube.

Answer 19

viscosity
density
weight
annulus

Question 20

Flowmeters are __ coded, and the flow control knob for oxygen is __ and __ differently

Answer 20

color
larger
shaped

Question 21

__ flowmeters are read from the top, while __ floats are read from the middle

Answer 21

Bobbin

ball

Question 22

Three factors that affect flowmeter accuracy include

Answer 22

back pressure from a ventilator
static electricity/dirt
float stuck at the top of a Thorpe tube

Question 23

The common gas outlet should or should not by used to administer supplemental oxygen to the patient?

Answer 23

SHOULD NOT