DIT antiarrythmics Flashcards Preview

Boards DIT > DIT antiarrythmics > Flashcards

Flashcards in DIT antiarrythmics Deck (21):
1

What are the anti arrhythmic classes? Mnemonic

No Boy Keeps Clean

Na blockers I
Beta lockers II
K+ blocker III
Calcium channel is IV

2

Class Ia?
Class Ib?
Class Ic?

Na blockers (slow depolarization of myocytes)

Double Quarter Pounder
Disopyramide Quinidine, Procainamide

Lettuce Mayo Tomato
Lidocaine, Mexilitine, tocainade

Fries Please
Flecainaide, Prpafenone

3

What does 1a affect?

Slow depolarization, LONGER Effective refractory (longer QT)

4

What is used for WPW? What is symptom?

Procainamide (only time you use it)

SLE symptom (Procainamide in SHIPP mnemonic)

5

Side effects of quinidine?

Cinchonism (headache, dizziness, tinnitus), thrombocytopenia, torsades (longer QT)

6

Lidocaine use?

Acute ventricular tachyarrhythmia, digitalis, MOST MI

IB is Best post MI

7

What do you use post MI?

IB is Best post MI (B)

8

When is IC contraindicated?

isChemic disease IC is ContraindiCated.

Only used as a last resort in VT

9

How does a beta blocker help with arrhythmia?

Prolongs frequency of phase 4 in sinus.

10

Tx for overdose with beta blocker?

Glucagon (it activates things shut down by it, more cAMP)

11

What phase does class III work on?

Phase III. Slow down slow voltage gated potassium channel

12

Drugs of class III?

Sotolol and amiodarone, ibutilide, dofetilide (notice the first two are most common)

13

Amiodarone toxicity?

Check your:
PFTs: pulmonary fibrosis
LFTs: hepatotoxicity
TFTs: hyper or hypothyroidism (b/c a ton of IODINE in amIODaroNE)
Photodermatitis (SAT mnemonic with sulfonamides and tetracycline)
Neuro, constipation, VC...
corneal deposits

Pulmonary function test
liver function test
thyroid function test

14

Clacium channel blockers are what drugs?

Verapamil and ditiazem

15

What do IV drugs do?

Decrease conduction through AV b/c slows rise of action potential

16

Dihydropyridine vs non-dihydropyridine?

Dihydropyridine is for vessels and ends in dipine (DIhydroPiridINE)

Nondihydropyridine is in heart and has non of those letters

17

Symptos of IV?

well they may have unintentional effects in periphery: flushing and edema.

Also constipation, CHF of course with the effect of drug, AV block, yeah sinus node depression, yeah

18

Adenosine mechanism?

Increases K+ leaving cell, so hyper polarizes the cell, so everything restarts as it drops down. But then metabolized fast, and it works again

19

Adensoine use?

SVT Dx and Tx

20

What is adenosine blocked by?

Theophylline (asthmatic or COPD patients)

21

Magnesium use?

torsades