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Flashcards in Capnography Deck (27)
1

What is Capnometry

CO2 assessment by numbers

2

What is Capnograph

CO2 assessment by waveform

3

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

 

 

 

4

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

1

Base line

5

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

2

begining of expiration

6

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

2-3

combination of deadspace and aveolar gases

7

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

3-4

Alveolar plateau (alveolar gas plateau)

8

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

4

Actual alveolar ETcO2 

pt begins to inspire Co2 free gasses 

9

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

4-5

 

Inspiratory Limb

Inspiration to baseline of 0 unless there is rebreathing

10

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

6

End of inspiration

11

what difines normal ETcO2 wave form in the trachea?

3 waves at 30mmHg

12

What does this waveform indicate

Esophageal intubation

13

what does this waveform indicate:

 

incompetent expiratory valve

exhausted Soda lime canister

14

what does this waveform Show:

 

prolonged upstroke

Prolonged expiratory plateau

15

what does this waveform i​ndicate:

 

incompetent inspiratory valve

Bc- not returning to zero axis

and inspiratory limb prolonged

16

what does this waveform i​ndicate:

Hyperventilation

- amplitude is less

- ventilation rate is increased

17

what does this waveform i​ndicate:

Hypoventilation

- note Y axis scale

- Note slow respiratory rate

-probably a chronic condition

18

what does this waveform i​ndicate:

Inspiratory effort

-lack of adequate paralysis

-alveolar plateau is key to notice

19

what does this waveform i​ndicate:

cardiac oscillations

20

what does this waveform i​ndicate:

external chest compressions

21

what does this waveform i​ndicate:

 

Incompetent inspiratory valve

-note take off angle

22

what does this waveform i​ndicate:

MH

- Note the very very very rapid increase in ETcO2

23

what does this waveform i​ndicate:

hypoventilation

-Acute b/c does not reflect hypercapnia

24

what does this waveform i​ndicate:

PE

-ETCO2 low

- Alveolar Plataeu angeled

- Rate increased

25

what would an obstructed waveform look like

no longer a top hat

expiratory limp slanted (crushed top hat)

26

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

Y -axis to see if Etco2 normal or abnormal

Respiratory rate

both can help you reduce your answers

27

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

obstruction

COPD/Asthma/ bronchitis

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