Lidocaine

Question 1

Class

Answer 1

Antiarrhymic

Local anesthetic

Question 2

Mech of action

Answer 2

Decreases automaticity by slowing the rate of spontaneous phase 4 depolarization. Terminates re-entry by decreasing conduction in re-entrant pathways( by slowing conduction in ischemic tissue, equalizes conduction speed among fibers)
Increases ventricular fibrillation threshold

Question 3

Indications

Answer 3

Suppression of ventricular arrhythmias( ventricular tachycardia, ventricular fibrillation
PVCs
Pain management after IO insertion in conscious patients

Question 4

Contraindications

Answer 4

Known hypersensitivity/allergy

Use extreme caution in patients with conduction disturbance (Second or 3rd° block)
Do not treat ectopic beats if heart rate is less than 60
They are probably compensating for bradycardia; instead, treat the bradycardia

Question 5

Adverse reaction’s

Answer 5

CV: May also cause SA nodal depression or conduction problems and hypotension in large doses, or if given to rapidly. Excessive doses and pediatric patient may produce Myocardial and circulatory depression
CNS: in large doses jobs in this, disorientation, para thesis, decreased hearing acuity, muscle twitching, agitation, focal or generalized seizures.