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Flashcards in Capnography Deck (27)
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1
Q

What is Capnometry

A

CO2 assessment by numbers

2
Q

What is Capnograph

A

CO2 assessment by waveform

3
Q

Placean E on the expiration and an I on the inspiratory phase

A
4
Q

Identify what is hapening at each number phase of the waveform:

1

A

Base line

5
Q

Identify what is hapening at each number phase of the waveform:

2

A

begining of expiration

6
Q

Identify what is hapening at each number phase of the waveform:

2-3

A

combination of deadspace and aveolar gases

7
Q

Identify what is hapening at each number phase of the waveform:

3-4

A

Alveolar plateau (alveolar gas plateau)

8
Q

Identify what is hapening at each number phase of the waveform:

4

A

Actual alveolar ETcO2

pt begins to inspire Co2 free gasses

9
Q

Identify what is hapening at each number phase of the waveform:

4-5

A

Inspiratory Limb

Inspiration to baseline of 0 unless there is rebreathing

10
Q

Identify what is hapening at each number phase of the waveform:

6

A

End of inspiration

11
Q

what difines normal ETcO2 wave form in the trachea?

A

3 waves at 30mmHg

12
Q

What does this waveform indicate

A

Esophageal intubation

13
Q

what does this waveform indicate:

A

incompetent expiratory valve

exhausted Soda lime canister

14
Q

what does this waveform Show:

A

prolonged upstroke

Prolonged expiratory plateau

15
Q

what does this waveform i​ndicate:

A

incompetent inspiratory valve

Bc- not returning to zero axis

and inspiratory limb prolonged

16
Q

what does this waveform i​ndicate:

A

Hyperventilation

  • amplitude is less
  • ventilation rate is increased
17
Q

what does this waveform i​ndicate:

A

Hypoventilation

  • note Y axis scale
  • Note slow respiratory rate
  • probably a chronic condition
18
Q

what does this waveform i​ndicate:

A

Inspiratory effort

  • lack of adequate paralysis
  • alveolar plateau is key to notice
19
Q

what does this waveform i​ndicate:

A

cardiac oscillations

20
Q

what does this waveform i​ndicate:

A

external chest compressions

21
Q

what does this waveform i​ndicate:

A

Incompetent inspiratory valve

-note take off angle

22
Q

what does this waveform i​ndicate:

A

MH

  • Note the very very very rapid increase in ETcO2
23
Q

what does this waveform i​ndicate:

A

hypoventilation

-Acute b/c does not reflect hypercapnia

24
Q

what does this waveform i​ndicate:

A

PE

  • ETCO2 low
  • Alveolar Plataeu angeled
  • Rate increased
25
Q

what would an obstructed waveform look like

A

no longer a top hat

expiratory limp slanted (crushed top hat)

26
Q

What are 2 things when interperating these you should look at?

A

Y -axis to see if Etco2 normal or abnormal

Respiratory rate

both can help you reduce your answers

27
Q

practice: what is this wave form showing and what are some possible causes?

A

obstruction

COPD/Asthma/ bronchitis

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