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RTH 190 > Midterm > Flashcards

Midterm Flashcards

1
Q

What is the cylinder factor for an E tank?

A

0.28

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2
Q

What is the cylinder factor for an H tank?

A

3.14

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3
Q

What is the pressure of a tank when full?

A

2000 psi

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4
Q

What is the pressure of a tank that’s been fit tested?

A

2200 psi

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5
Q

How do you find the duration of flow for a tank?

A

(pressure x cylinder) / flow

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6
Q

What is a PISS system?

A

yoke type of system with different pin holes for different types of gas cylinders (6 holes with 10 combinations)

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7
Q

What is a DISS system?

A

external and internal threads and a nut that all match/go with the same gas so you can’t cross thread between different gases

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8
Q

What is an air entrainment system?

A

direct high pressure oxygen source through a small jet surrounded by air entrainment ports

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9
Q

How does the amount of air entrained by air entrainment systems vary?

A

directly with the size of the port and the velocity of oxygen at the jet (the larger the intake ports and the higher the gas velocity at the jet, the more air is entrained)

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10
Q

How does the amount of air entrained affect the flow and FiO2?

A

the higher the total output flow and the delivered FiO2 is lower

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11
Q

Air to oxygen ratio

A

(100-x) / (x-21)

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12
Q

How do you calculate total flow?

A

(air + O2) x flow

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13
Q

What is absolute humidity?

A

The amount of water extracted from air

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14
Q

What is relative humidity?

A

the ratio of its actual water vapor content to its saturated capacity at a given temperature (the gas’ water vapor when not fully saturated)

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15
Q

What is body humidity?

A

ratio of its actual water vapor content to the water vapor capacity in saturated gas at body temperature (37degreesC)

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16
Q

What is humidity deficit?

A

the amount of water vapor the body must add to the inspired gas to achieve saturday at body temperature

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17
Q

CPR

A
  • for every 30 compressions, give 2 breaths

- give 1 breath for every 5 seconds when bagging

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18
Q

What is a bourdon gage?

A

an uncompensated regulator that is used for transport (fixed orifice)

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19
Q

What is a thorpe tube flow meter?

A

a compensated flow meter that attaches to a 50 psi gas source (variable orifice)

20
Q

Nasal cannula

A

FiO2 24%-40%

up to 6 L/min, but must use a humidifier if 4 L/min or higher

21
Q

Simple mask

A

FiO2 35%-50%

5-10 L/min

22
Q

Partial rebreather

A

FiO2 40%-70%

minimum of 10 L/min

23
Q

Non rebreather

A

FiO2 60%-80%

minimum of 10 L/min and inspiration the bag must be full and prevented from collapsing

24
Q

Small volume nebulizer

A

6-8 L/min

25
Q

Large volume nebulizer

A

should see mist coming out

26
Q

Air entrainment mask

A

FiO2 24%-50%

flow should be >60 L/min

27
Q

High flow nasal cannula

A

FiO2 35%-90%

up to 40 L/min

28
Q

What is normal flow?

A

30 L/min

29
Q

What happens if you have a bigger jet nozzle?

A

higher FiO2

30
Q

Troubleshooting

A
  • condensation or kinking: decreases flow and increases FiO2, and RAW increases
  • whistling indicates a leak or tube is obstructed (pressure relief valve)
31
Q

What does oxygen therapy do?

A
  • decreases: work of breathing, shortness of breath, heart rate and respiratory rate
  • increases: SpO2 and PaO2
32
Q

What is the normal systolic range for BP?

A

90-140

33
Q

What is the normal diastolic range for BP?

A

60-90

34
Q

What is the normal pulse pressure?

A

30-40

35
Q

What is the normal respiratory rate?

A

12-20

36
Q

What is a normal pulse?

A

80-100

37
Q

What is normal SpO2?

A

93-100

38
Q

What is normal PaO2

A

80-100

39
Q

What is eupnea?

A

normal, relaxed breathing

40
Q

What is hyperpnea?

A

increased depth of breathing

41
Q

What is orthopnea?

A

shortness of breath when lying flat

42
Q

What is platypnea?

A

shortness of breath when sitting up

43
Q

What is dyspnea?

A

shortness of breath

44
Q

What is paroxysmal nocturnal asthma?

A

severe shortness of breath and coughing that generally occurs at night, and is relieved in the upright position

45
Q

What is biot’s breathing?

A

clustering of rapid, shallow breaths coupled with regular or irregular periods of apnea caused by damage to brain from stroke or trauma

46
Q

What is cheyne stokes breathing?

A

irregular type of breathing; breaths increase and decrease in both depth and rate with periods of apnea caused by CHF and severe brain injurt

47
Q

What is kussmaul’s breathing?

A

deep and fast respirations caused by metabolic acidosis

RTH 190 (2 decks)

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