anti- arrhythmia drugs

Question 1

PROCAIDENAMIDE

Answer 1

CLASS ONE DRUG (NA CHANNEL BLOCK)
FIRST LINE TX FOR V.A
ADMINISTER VIA IV

Question 2

LIDOCAINE

Answer 2

CLASS ONE DRUG
GIVEN VIA IV FOR V.A
ALSO USED AS A TOPICAL ANAESTHETIC
IT CAN ALSO BE INJECTED BELOW THE DERMIS BEFORE INSERTION
OR INSTILLED DOWN ETT PRE-SUCTION TO PREVENT COUGHING

SIDE EFFECTS- CAN SLOW REFRACTORY PERIOD TOO MUCH CAUSING 2ND DEGREE HEART BLOCK OR EVEN CAUSE COMPLETE BLOCK ( ASYSTOLE)

Question 3

METOPROPOL AND LABETALOL

Answer 3

BOTH DRUGS ARE CLASS 2 (BETA BLOCKER)
CAN BE TAKEN PO AS A MAINTENANCE DRUG AFTER MI AND VIA IV IN EMERGENCY SITUATIONS

SIDE EFFECTS
-BRONCHOSPASMS (DUE TO CROSS OVER EFFECT)
BRADYCARDIA
HYPOTENSION- ALSO USE AS AN ANTI- HYPERTENSION

Question 4

AMIODARONE

Answer 4

CLASS THREE DRUG ( PROLONGS PHASE 3) 
USE AS A FIRTS LINE THERAPY FOR 
-A-FIB AND V-TACH 
BROAD SPECTRUM USAGE 
PO AND IV 

SIDE EFFECTS

• BRADYCARDIA
• HYPOTENSION
• INTERSTITIAL PULMONARY FIBROSIS

Question 5

DILTIAZEM (CARDIZEM)

VERAPAMIL

Answer 5

CLASS 4 DRUG (CA CHANNEL BLOCKER)
NEG DROMOTROPES
ALSO CAUSES VASODILATION
ANGINA RELIEVER

SIDE EFFECTS
HYPOTENTION (LOW BP)
PERIPHERAL EDEMA

Question 6

ATROPINE

Answer 6

COMPETITIVE ANTAGONIST FOR MUSCARINIC RECEPTORS

HAS NO INOTROPIC EFFECT

Question 7

ADENOSINE

Answer 7

CAUSES A COMPLETE DEPRESSION OF SA AND ACV NODE CONDUCTION 
FLAT LINE UNTIL DRUG WEARS OFF 
IV PUSH FOLLOWED BY SALINE 
ONLY USE ON ACUTE SITUATIONS 
ALSO A VASODILATOR
SIDE EFFECTS CAN BE DETREMENTAL IF PT DONT RETURN TO S.R 
CHEST PAIN 
BRONCHOCONSTRICTION

Question 8

DIGOXIN

Answer 8

NOT PART OF THE 4 CLASS DRUGS
SECOND LINE THERAPY AFTER BETA BLOCKERS
BLOCKS THE AV NODE, DECREASING CONDUCTION INTO VENTRICLES
HAS SOME (+) INOTROPIC EFFECTS- INCREASES CO
BUT SMALL THERAPEUTIC INDEX