Narrow Complex Tachycardias Flashcards
1
Q
Amiodarone - Class and mechanism of action?
A
Class 3 - Prolongs phase 3 of the cardiac action potential.
2
Q
Why use dextrose instead of saline for Amiodarone infusion?
A
More finite pH range. Acidic environment may inactivate Amiodarone (usually takes ~24hrs)
3
Q
Formula for working out drops per second?
A
Amount of mls x drops per second of giving set (usually 20) / how many minutes to give infusions / 60 seconds in a minute
4
Q
Only cardiovert a significantly compromised narrow complex tachycardia if…
A
No other underlying cause (eg sepsis)
5
Q
Explain the Brugada Criteria:
A
IF: Concordance -> VT
ELSE IF: Brugada’s Sign -> VT
ELSE IF: AV Dissociation -> VT
ELSE BBB Morphology…
