Em - Cardiac Dysrhythmias

Front 1

What type of chronic cardiac dysfunction predisposes to higher mortality if a dysrhythmia develops?

Back 1

LV systolic dysfunction

Front 2

Indications for ICD:

Back 2

- LV dysfunction
- Prior episodes of VT
- Patients resuscitated after V-fib arrest ("sudden cardiac death")

Front 3

These Rx/Herbals ... predispose to which dysrhythmias?

1 - BB, CCBC
2 - Digoxin
3 - Antihistamines
4 - Neuroleptics
5 - Metoclopramide
6 - caffeine
7 - COPD inhaler Rx

Back 3

1 - Bradys / blocks
2 - Bradys / blocks / tachys (incr ventricular automaticity)
3 - Tachys (prolong QTc)
4 - Tachys (prolong QTc)
5 - Tachys (prolong QTc)
6 - Tachys (AVNRT, by shortening slow pathway refractory period)
7 - Tachys

Front 4

These PMH/PSH ... predispose to which dysrhythmias?

1 - COPD
2 - IVDU
3 - ESRD/dialysis
4 - Hyperthyroid
5 - Hypothyroid

Back 4

1 - MAT, A-fib
2 - blocks (2/2 inf endocarditis)
3 - bradys / blocks / worsen dig tox (2/2 hyperK) / Tachys (prolong QTc 2/2 hypoCa)
4 - Sinus tach / A-fib
5 - Sinus brady

Front 5

Electrolyte abnormality --> what EKG changes?

- HyperK

- HypoK

Back 5

- flat P --> peak T --> wide QRS --> TdP

- peaked P --> flat T --> U wave

Front 6

Electrolyte abnormality --> what EKG changes?

- HypoMg

- HypoCa

Back 6

- prolonged QTc --> TdP

- prolonged QTc --> TdP

Front 7

Adult Bradycardia (with pulse)

- When to Tx?

Back 7

Tx when UNSTABLE:
- hypotension
- signs of shock/inadequate end-organ perfuson
-- confusion / AMS
-- chest pain / SOB

Front 8

Adult Bradycardia (with pulse)

- Tx if emergent/severely Sx?

Back 8

#1 = Transcutaneous pacing (80V, 80bpm

Front 9

Adult Bradycardia (with pulse)

- Tx if urgent/moderately Sx?

Back 9

#1 = atropine 0.5mg, q 3-5min, max 3mg

#2 = DA 2-10 mcg/kg/min
(B-agonist dosing range) through central line (to avoid skin necrosis)

#3 = EPI 2-10 mcg/kg/min