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RRT Exam > Medical Gas Therapy > Flashcards

Medical Gas Therapy Flashcards

0
Q

What causes Retinopathy of Prematurity in premature infants and neonate?

A

High PaO2 and not a high FIO2

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1
Q

What are the hazards and complications of Oxygen Therapy?

A

Fire hazards, Retinopathy of Prematurity, O2 induced hypoventilation, O2 toxicity, and Absorption Atelectasis

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2
Q

What is the treatment for patients affected by O2 induced hypoventilation?

A

Decrease level of inspired FIO2

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3
Q

What causes Absorption Atelectasis?

A

Rapid changes in FIO2

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4
Q

Which category are nasal cannulas, simple masks, and partial rebreather masks in?

A

Low flow devices

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5
Q

What is the recommended flow rate for a simple mask?

A

6-10 L/min

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6
Q

What type of patient is a nasal cannula most appropriate?

A

COPD patients and “comfort care”

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7
Q

What is the recommended flow rate for a simple mask?

A

6-10 L/ min

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8
Q

What are examples of High Flow Devices?

A

Non-rebreather Mask, Air Entrainment Mask/Venturi Mask, Brigg’s Adaptor/T-Piece, and aerosol mask, trach collar and face tent

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9
Q

In what instances would a non-rebreather mask be appropriate?

A

Emergency situations, pneumos, CO poisoning, CHF, Burns

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10
Q

In what cases should an Air Entrainment Mask be recommended?

A

Accuracy of FIO2, patients with irregular respiratory rates, breathing patterns and tidal volumes

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11
Q

What happens to FIO2 if the Air Entrainment port size is increased?

A

FIO2 is decreased

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12
Q

What happens to Total Flow if the Air Entrainment port size is increased?

A

Total flow increases

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13
Q

If the flow through the oxygen outlet is increased or decreased, what happens to the FIO2 with an Air Entrainment Mask?

A

The FIO2 remains the same

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14
Q

Which high flow system is ideal for COPD patients?

A

Air Entrainment Masks

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15
Q

With a Brigg’s adaptor (T-Piece), what should be seen from the reservoir tubing during inspiration?

A

Aerosol should be seen

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16
Q

What should be done if aerosol disappears from reservoir tubing in the Brigg’s adaptor?

A
  1. Increase the flow
  2. Add more reservoir tubing
  3. Set up a device to provide more flow (blender, tandem set-up, change flow meter)
17
Q

What kind of patients are Oxygen Hoods used for?

A

Infants

18
Q

Which oxygen device is used for the administration if oxygen and high humidity?

A

Oxygen Hood

19
Q

What flow rates are recommended for an Oxygen Hood?

A

7-14 L/min

20
Q

What is the best way to monitor oxygen levels with an Oxygen Hood?

A

The preferred method is to analyze O2 continuously near the infant’s face

21
Q

What are some indications for the Oxygen Tent?

A

Indicated for pediatric patients requiring a controlled environment

22
Q

How will an RT know if a pediatric patient has fluid overload from a Oxygen Tent?

A

The patient will experience weight gain

23
Q

How might an RT recommend treating CO Poisoning, Decompression Sicknesses (bends) or Anaerobic Infections (gas gangrene)?

A

Hyperbaric Oxygen Therapy

24
Q

What level of atmospheric pressure are most HBO therapy conducted?

A

2-6 ATA

25
Q

What kind of therapy might benefit patients with increased airway resistance, edema, foreign object obstruction, or partial vocal cord paralysis?

A

Helium/Oxygen Therapy

26
Q

What device should be used to administer Helium/Oxygen Therapy?

A

Non-Rebreathing Masks

27
Q

When using an O2 flow meter to regulate flow, how is the causal flow calculated?

A

80/20 mixture: 1.8 times greater than the L/min

70/30 mixture: 1.6 times greater than the L/min

28
Q

What kind of connections do H Cylinders utilize?

A

American Standard Safety System (ASSS)

29
Q

What kind of connections are utilized for E Cylinders?

A

Pin Index Safety System (PISS)

30
Q

If a tank is leaking, how should an RT troubleshoot for problems?

A

Check and tighten all connections, check outlet for debris, and check/replace washer

31
Q

If a patient states that no flow is sensed from the cannula, how should an RT troubleshoot the problem?

A

Verify the flow by inserting the cannula into a glass of water and checking for bubbles

32
Q

What is the formula to check the duration of flow for oxygen tanks and cylinders?

A 
Gauge pressure (psi) x tank factor/
Liter flow
33
Q

Which tank has the tank factor or 0.3?

A

E Cylinder

34
Q

What tank has a tank factor of 3.0?

A

H Cylinder

35
Q

How long will a full E Cylinder last at a flow of 10 L/min?

A

66 min (I hr & 6 min)

36
Q

How long will an H Cylinder with 700 psig run at a flow rate of 5 LPM?

A

420 min (7 hours)

37
Q

What are the advantages of Liquid bulk oxygen?

A
  1. Stores large quantities of oxygen that minimizes storage
  2. Provides an unlimited supply of oxygen to patients
  3. Backed up by a manifold system
38
Q

If a massive leak occurs after removing a flow meter, how might an RT troubleshoot the problem?

A
  1. Try inserting it into the wall
  2. Contact personnel and supply supplemental oxygen to patient
  3. Turn off zone valve?
39
Q

How can an RT achieve a precise FIO2 with an oxygen blender?

A

It can be used with a non-rebreather mask to achieve a precise FIO2

40
Q

What are the Air to Oxygen Entrainment & Total Flow Factors for FIO2 concentrations of 28, 35, 40, 60, and 100?

A 
28=11
35=5.6
40=4
60=2
100=1
41
Q

How does Hyperbaric Oxygen Therapy improve the oxygenation status of patients?

A

It increases the partial pressure of oxygen

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