cardiac arrest Flashcards
1
Q
lidocaine indications
A
- local anaesthetic e.g. urianry catheter and minor ops
- less often; VT/VF refractory ot electrocardioversion
2
Q
MOA lidocaine
A
- enters cells in uncharged form - accepts a proton, becomes positively charged.
- from inside the cell, enters and blocks vgna. = stops action potentials in nerves and msucle.
- in heart reduces duration of AP
3
Q
SE lidocaine
A
- initial stinging during administration
- dROWSY,
- RESTLESS
- tremor
- fits
- Overdose = hypotension and arrhythmias
4
Q
who should u use lower doses of lidocaine in
A
- reduced cardiac output
5
Q
what is a desirable interaction of lidocaine
A
- adrenaline - prolongs anaesthetic effect
