Intro into Anesthesia Machines, Gas supply , Cylinders and Pipelines ppt PICTURES and MUST KNOWS Flashcards
(30 cards)
What is this picture of? and what does it stand for?
- APL valve
- Adjustable pressure limiting valve
What is the line in the center of this pic?
What does it do?
CO2 sampling line
samples CO2, O2, VAA’s, all Gasses
What is the round thing with number on it called? and
what do the letters stand for?
what does it measure?
what is it a connection to (in combination with the green bag)
- The pressure gauge (PSIG)
- per square inch gauge
- Measure pressure of the inspiratory or expiratory pressures
- a direct physical connection of your pt lungs lungs
What is the green bag a direct physical replication of in combination with the gauge?
- you pt’s lungs
*******the Hospital pipeline is the primary gas source, what is the psig (normal working pressure of most machines)?
50 psig
******Cylinders-O2 is supplied at around 2000 psig. it is regulated to approximately ___ psig after it passes through the downstage regulator into the machine)
45 psig
**** oxygen flush is a “straight shot” from supply to delivery point at ___ to ___ L/min
35 to 75 L/min
*******Cylinders are regulated by whom?
The Department of Transportation
*********************According to the OSHA fact sheet of 1991 on Waste Anesthestic Gasses (WAGs) occupational exposure should be limited to an 8 hour time-weighted average of not more than _______ ppm for halogenated agents such as (Halothane, Enflurane, Isoflurane, Sevoflurane, desflurane)
2 ppm
*********************According to the OSHA fact sheet of 1991 on Waste Anesthestic Gasses (WAGs) occupational exposure should be limited to an 8 hour time-weighted average of not more than_____ppm of halogenated agent is allowed when the halogenated agent is COMBINED with N2O
0.5 ppm
*********************According to the OSHA fact sheet of 1991 on Waste Anesthestic Gasses (WAGs) occupational exposure should be limited to an 8 hour time-weighted average of not more than_______ppm of N2O can be used at all times (with or without halogenated Agent)
25 ppm
******* 5 functions of O2
Powers the ventilators “drive gas”
O2 Flush
Activates low pressure alarms
Activates fail safe mechanisms
Tumbles through the flowmeter
*****************
P.I.S.S
what does it stand for?
what is it’s purpose?
Pin-index safety system
it prevents misconnection of a cylinder to the wrong yoke
*******
what is special about measuring the amt of N2O in a cylinder
you have to weigh it b/c you can be almost 25% empty and still read 745 psig, there is no way you calculate how much N2O is left in a cylinder without a weight
(so if on a test he gives a formula, and there is no weight, it can’t be done)
*************************
name the Color of the cylinder (US/international), PSIG, Capacity (L), and PISS for
O2
N2O
Air
GAS Color (US/INT) PSIG Capacity (L) PISS
O2 Green (white) 2000 660L 2-5
N2O Blue (blue) 745 1590L 3-5
Air Yellow (B&W) 1900 625L 1-5
a way to remember the PISS
1st they breath air (1-5)
2nd they breathe O2 (2-5)
3rd they breathe N2O (3-5)
(thanks Dwayne
*************
How long before a given O2 tank is exhausted
general rules??/
2200psi= 660L
psi * 0.3= L remaining
****************
What makes up the low pressure sytem?
(4)
*** everything distal to flowmeter needle valve
- flowmeter tubes
- vaporizers
- check valves (if pressent
- common gas outlet
*************************
of the 5 things that can increase degradations within the CO2 absorbers what is teh most INFLUENTAL cause? what cause it to occur?
dry absorbers
-Caused by prolonged high flows
****************************
The Ascending bellows will collapse in the presence of what?
A leak (disconnect)
what tank is this via the PISS
O2
notice the PISS systen at 2-5
WHat tank is this using the PISS
N2O
notice the 3-5 holes
Lable the PISS
What system is this picture showing?
low int or high
then name all the parts of that system
HIgh pressure system
Hanger yoke
Yoke block
Cylider pressure gauge
Clinder pressure regulator
