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RET1024C- Respiratory Therapy Fundamentals > Chapter 3 In respiratoy care equipment. Manufacture, storage and transport of medical gases. > Flashcards

Chapter 3 In respiratoy care equipment. Manufacture, storage and transport of medical gases. Flashcards

1
Q

Air

A

A colorless orderless gas mixture that contains approximatley 78% nitrogen and 21% oxygen , 1% of other gases.

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1
Q

CGA

A

Compressed Gas Association

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2
Q

What is the denisty of air?

A

1.29 kg/m3 at 21 degress celcius and 760 mm Hg.

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3
Q

How much of the earths atmosphere is oxygen.

A

20.9%

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4
Q

Liquefaction

A

Liquid air is air liquefied at -196°C at atmospheric pressure.

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5
Q

Fractional distillation

A

the separation of a mixture into its component parts, or fractions. Relies on the Joule-Kelvin effect.

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6
Q

Physical seperate of air

A

Accomplished with devices such as molecular sieves and semipermeable membranes to filter room air.

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7
Q

What is the denisty of CO2

A

1.833 kg/m3 at 21.1 degree celcuis and 1 atm.

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8
Q

At what temperature can CO2 Exist as a gas, solid and liquid

A

-56.6 degree celcius and a pressure of 60.4 psig

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9
Q

What is the name for CO2 if i goes below its tripple point.

A

Dry ice

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10
Q

What are the percentages in Carbon diociode - oxygen mixtures

A

5-10 % carbon dioide and 90-95% oxygen.

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11
Q

What is the density for Helium?

A

0.165 kg/m3 at 21.1 degree celcius at 1 atm

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12
Q

What is the maxium amount of Helium that can be obtained from natural gasses?

A

2%

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13
Q

What is the alternative way to produce Helium?

A

By heating urannium ore.

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14
Q

What is the percentages of heliox gas?

A

80% helium and 20% oxygen or 70;30 and 60;40

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15
Q

Nitric oxide

A

A colorless gas that has a slight mettalic order at room temperature. Powerful pulmonary vasodialotor

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16
Q

What is the density of nitiric oxide

A

1.245 kg/m3

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17
Q

Nitrous oxide

A

A potent anesthetic when aminstered in high concentrations.

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18
Q

What is the other name for nitrous oxide

A

Laughing gas.

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19
Q

What are compressed gas cylinders made out of?

A

Seamless high quality steel, chrome-molybdenum or aluminum.

20
Q

Type 3AA cylingders

A

produced by heat treated high stenght steel.T

21
Q

Type 3AL cylinders

A

Are constructed with specially prescribed seamless aluminum alloys.

22
Q

Type 3 Cylinders

A

made of low carbon steel

23
Q

The process of filling and refilling gas cyliders involves 4 steps

A
  • Cylinder prefill inspection
  • Cylinder filling
  • Post fill procedures
  • Appropraite documentation.
24
Q

Respiratory Mainly use what kinds of cylinders

A

E and H types

25
Q

When ae E cylinders typically used?

A

A source of oxygen in an emergency situtation. Found in Crash Carts

26
Q

When are H cylinders typically used?

A

Primary method of storing oxygen and other medical gases.

27
Q

What color are oxygen cylinders

A

White

28
Q

What color are compressed air cylinders painted

A

Yellow or black and white

29
Q

What is the color for oxygen tanks in the UNITED STATES

A

Green

30
Q

What color is compressed air cylinfers in the United States?

A

Yellow.

31
Q

What color are the CO2 cylinders in the United States

A

Grey

32
Q

What are cylinder valves?

A

A control device that seals the contents of a compression cylinder

33
Q

What are the parts of a cylinder valve

A

A chrome plated brass body
A thread inlet connector for attachment to the cylinder.
A stem that open and closes the cylinder
An outlet connection that allows for attachment of regulartors and pressure reducing valves.
A pressure relief valve

34
Q

What is a direct acting valve.

A

contains two fiber washer amd teflon packaging to prevent gas leakage around the threads. can withstand over 1500 psi

35
Q

What are diaphragm valves

A

Valves that use a threaded stem in place of packaging found on direct valves. Preferably better to use when pressure is lower that 1500 psi

36
Q

What are the 3 pressure release valves called?

A

Rupture disk
fusible plugs
spring loaded devices

37
Q

What is a rupture/ frangible disk?

A

A thin metal disk that ruptures or buckles when the pressure inside the pressure cylinder exceeds a certain limit.

38
Q

What is a fusible plug?

A

Made of a metal alloy that melts when the temperature of the gas in the tank exceed the predetermined temperature.

39
Q

What is a spring loaded device

A

Designed to release excessive cylinder pressure and reseal preventing further releas of gas from the cylinder.

40
Q

THE ASSS

A

The American Standard Safety System

41
Q

PISS

A

Pin Index Safety System

42
Q

What is the formual used to estimate the duration of oxygen supply in a gas cylinder

A 
          Flow rate of gas (L/M)

                 = Duration of flow in minutes
43
Q

What is the threshold for a bulk oxygen system?

A

20,000 Cu ft

44
Q

Thrope tube flowmeter

A

A Thorpe tube flowmeter, a type of variable-area flowmeter, or a rotameter, is an instrument used to directly measure the flow rate of a gas in medical instrument

45
Q

Piston Compressors

A

Use the action of a motor driven piston to compress atmospheric air.

46
Q

What is the volume pressure constant for the E tank

A

0.28

47
Q

What is the volume pressure constant or the G tank

A

2.41

48
Q

What is the volume pressure constant on the H and K tank

A

3.14

RET1024C- Respiratory Therapy Fundamentals (9 decks)

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