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Tricks in Heart Block Cheat Sheet, Cheat Sheet of Cardiology

Types of heart block along with what it means with different ecg result samples

Typology: Cheat Sheet

2020/2021

Uploaded on 04/27/2021

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ekaling 🇺🇸

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Rhythm Strip Samples to help with ACLS Precourse Assessment with Unique Criteria.
Heart Block Tricks from Terry
1
20 rhythm strips on precourse assessment with the following matching choices:
Agonal rhythm/asystole
Atrial Fibrillation
Atrial Flutter
Ventricular Fibrillation
Monomorphic Ventricular Tachycardia
Normal Sinus Rhythm
Polymorphic Ventricular Tachycardia
Pulseless Electrical Activity
Supraventricular Tachycardia
Second-degree atrioventricular block (Mobitz I, Wenckebach)
Second-degree atrioventricular block (Mobitz II block)
Sinus bradycardia
Sinus tachycardia
Third-degree atrioventricular block
RHYTHM &
ETIOLOGY
CRITERIA
OVERVIEW
UNIQUE
CRITERIA
SAMPLE STRIP
S
***Normal Sinus
Rhythm
Normal, None
RHY Regular
R 60-100
P Upright
PRI 0.12 0.20
QRS 0.04
0.10
None,
normal
rhythm
***Sinus
Tachycardia
Exercise
Anxiety
Caffeine
Nicotine
Fever
Shock
CHF
Hypotension
Pain
Hypoxemia
Anterior MI
RHY Regular
R 100 - 160
P Upright
PRI 0.12 0.20
QRS 0.04
0.10
Rate
100 - 160
***Sinus RHY Regular Rate below
pf3
pf4
pf5

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Heart Block Tricks from Terry

20 rhythm strips on precourse assessment with the following matching choices:

Agonal rhythm/asystole Atrial Fibrillation Atrial Flutter Ventricular Fibrillation Monomorphic Ventricular Tachycardia Normal Sinus Rhythm Polymorphic Ventricular Tachycardia Pulseless Electrical Activity Supraventricular Tachycardia Second-degree atrioventricular block (Mobitz I, Wenckebach) Second-degree atrioventricular block (Mobitz II block) Sinus bradycardia Sinus tachycardia Third-degree atrioventricular block RHYTHM &ETIOLOGY

CRITERIA

OVERVIEW

UNIQUE

CRITERIA

SAMPLE STRIPS

***Normal Sinus

Rhythm

♥ Normal, None RHY – Regular R – 60- P – Upright PRI – 0.12 – 0. QRS – 0.04 –

None, normal rhythm

***Sinus

Tachycardia

♥ Exercise ♥ Anxiety ♥ Caffeine ♥ Nicotine ♥ Fever ♥ Shock ♥ CHF ♥ Hypotension ♥ Pain ♥ Hypoxemia ♥ Anterior MI RHY – Regular R – 100 - 160 P – Upright PRI – 0.12 – 0. QRS – 0.04 –

Rate 100 - 160

***Sinus RHY – Regular Rate below

Heart Block Tricks from Terry

RHYTHM &

♥ ETIOLOGY

CRITERIA

OVERVIEW

UNIQUE

CRITERIA

SAMPLE STRIPS

Bradycardia

♥ Damage SA ♥ Normal sleep athletes ♥ Vagal ♥ Glaucoma ♥ Hypothermia ♥ Inferior MI ♥ Drugs – MS, digoxin, Inderal ♥ IICP R – below 60 P – Upright PRI – 0.12 – 0. QRS – 0.04 –

***PVC/PVD

Premature Ventricular Contraction/Depolarizati on ♥ Hypoxia, ♥ Hypotension ♥ anemia ♥ Ischemic hrt dis ♥ Electrolytes ♥ M.I. ♥ Myocarditis, pericarditis ♥ CHF ♥ Stress, fatigue, smoking, overeating, caffeine ♥ Hypoglycemia ♥ Sepsis ♥ Cyclic anti- depressants ♥ Acidosis

AN ECTOPIC

BEAT

RHY – Irregular R – 60- P – Upright PRI – 0.12 – 0. QRS– 0.04 – 0. SR, early beat has VENT beat (wide & bizarre)

Supraventricular

Tachycardia

♥ Not visible sudden start or stop. RHY – Regular R – 160 - 250 P – Upright PRI – 0.12 – 0. QRS– 0.04 – 0. Rate above 160 - 250

***Atrial Flutter RHY – Regular or Regular or

Heart Block Tricks from Terry

RHYTHM &

♥ ETIOLOGY

CRITERIA

OVERVIEW

UNIQUE

CRITERIA

SAMPLE STRIPS

***2nd degree AV

Block

Type II or Mobitz

II

RHY – Regular or Irregular PRI – constant QRS – normal or wide Regular or Irregular EXTRA Ps

3rd degree AV

Block, Complete

Heart Block

♥ Same as 1st^ degree RHY - Regular PRI – vary QRS – usually wide Regular EXTRA Ps PRI varies greatly

***Ventricular

Tachycardia

monomorpic

♥ All complexes are the same shape and look the same ♥ Wide complex tachycardia RHY – Regular R – Above 100 P – None PRI –None QRS – Wide, Bizarre R over 100 All Vent beats

***Ventricular

Fibrillation

♥ Following V Tach ♥ Acute MI ♥ Electrolyte Imbalance RHY – Chaotic R – None P – None PRI –None QRS – none, fibrillatory line Chaotic wavy line. No pulse.

Rhythm Strip Samples to help with ACLS Precourse Assessment

RHYTHM &

♥ ETIOLOGY

CRITERIA

OVERVIEW

UNIQUE

CRITERIA

Torasades de

Pointes

Polymorphic

ventricular

tachycardia

Best Treated with

magnesium

RHY – Chaotic waves R – None P – None PRI –None QRS – points twist Chaotic wavy line. No pulse. Points twist

***Agonal

♥ Dying heart ♥ Drugs used in cardiac arrest provide some electrical waves. RHY – Regular R – Slow P – None PRI – None QRS – very very wide Slow wide bizarre stretched out waves. No Pulse

***Asystole

♥ Primary event in cardiac arrest. ♥ Untreated V-tach or V-fib RHY – None unless only Ps R – No Vent rate P – may be present PRI – None QRS – None Straight line or only Ps No Pulse

Calculating Heart Rate

Table for Small Box Method To calculate the heart rate, count the number of 0.04 squares (or small boxes) Small Boxes from R to R

elp with ACLS Precourse Assessment with Unique Criteria.

Heart Block Tricks from Terry

UNIQUE

CRITERIA

SAMPLE STRIP

Chaotic wavy No pulse. Points twist Slow wide stretched out Straight line or only Ps No Pulse

Calculating Heart Rate - note strips on pretest are longer than 6 seconds.

To calculate the heart rate, count the number of 0.04 squares (or small boxes) between two QRS complexes (1500 divid

with Unique Criteria.

SAMPLE STRIPS

note strips on pretest are longer than 6 seconds.

between two QRS complexes (1500 divided by X = HR)

Heart Block Tricks from Terry

http://www.univie.ac.at/cga/courses/BE513/EKG/qrs.gif http://pspl.technion.ac.il/projects/2004s22/ecg1.JPG