Capnography1 Flashcards
Name 3 types of abnormal wave patterns for capnography
Curare
Camel
Airflow problem
Which type of abnormal waveform resembles a shark fin?
Airflow problem wave form
This type of waveform is seen in this type of situation?
Patient is in a lateral position
Camel Waveform pattern
This type of waveform may be seen when paralytic has worn off post surgery?
Curare waveform
What type of waveform may be seen when you have no coordination between vent & intercostal muscles?
Curare
What type of waveform may be seen during spont breathing when patient is ventilated?
Curare
Name 6 different types of trend patterns?
SD= Sudden drop ED= exponential drop GI= Gradual increase SI= Sudden increase GD= Gradual decrease USB= Upward Shift in baseline
When you have hyperventilation which type of waveform trend pattern will you see?
Gradual lowering or decrease in trend pattern
When you have hypoventilation which type of waveform trend pattern will you see?
Gradual increase in trend pattern
When you see an increase in CO2 production from rapidly rising body temperature what trend pattern will you see?
Gradual increase trend pattern
When you have a patient that has a kinked ET tube what trend pattern would you expect to see?
Sudden drop
If you have a problem with the sidestream line causing mucus to build up & block what type of trend pattern would you see?
Sudden drop
When you have a patient who just received IV line of adrenaline what trend pattern would you expect?
Sudden increase trend pattern
If your patient begins rebreathing CO2 what trend pattern would result?
Upward shift in baseline
When you have the lowering of body temperature what trend waveform would you expect?
Gradual lowering of trend pattern
If your CO2 analyzer did not calibrate correctly what problem would you see?
Upward shift in baseline
If your patient is administered sodium bicarb what trend pattern would you see?
Sudden Increase
If you see decreasing perfusion what trend wave pattern would you see?
Gradual lowering of trend pattern
If there is a problem with you CO2 absorber what trend wavepattern would you see?
Upward shift of baseline
If I suddenly release a tourniquet what trend wave pattern results?
Sudden increase trend pattern
An increase of dead space may cause which waveform?
Upward shift in baseline
If you lower body temp what would the trend wavepattern do?
Gradual lowering
If a patient has a sudden decrease in pulmonary circulation then what trend wave pattern is present?
Exponential decrease
If a patient has a cardiac arrest what trend wave pattern shows?
Gradual decrease in trend pattern
If your bp increases and reason can be drug induced what trend waveform is present?
Sudden Increase trend pattern
If a patient has severe blood loss what pattern would you see?
Gradual decrease
A big leak would produce which pattern?
Sudden decrease
An increase in dead space produces which trend pattern?
Upward shift of baseline
If you exercise or breath large VT what happens to your P(a-ET)CO2 A. PaCO2 will be larger than PetCO2 B. PetCO2 will be larger than PaCO2 C. No change D. The values will equal
B. PetCO2 will be larger than PaCO2
Name 4 reasons you would use capnometry?
Estimate physical dead space
Verify ET tube to prevent esophageal intubation
During blood flow during cardiac arrest
Assessment of PEEP
How much CO2 is present in a normal inspired breath?
None
What causes an expired CO2 to equal 0?
Patient disconnect
If you notice an elevated baseline what could be the cause?
Rebreathing CO2
