Normals
Conduction of ECG
Measure what?
Heart Blocks
Fatal Rhythms
100

This is the normal length of a PRI

What is 0.12-0.20 seconds? 

100

This is the primary pacemaker of the heart 

What is the SA node?

100

0.06-0.11 seconds is the normal length for this wave on ECG

P-wave 

100

This is considered a low level heart block

What is 1st Degree AV block?

100

This rhythm has an ECG reading but no associated pulse?

What is pulseless electrical activity? 

200
The primary pacemaker of the heart 

What is the SA Node?

200
In a normal conduction, this node is the second normal in the electrical conduction of the heart 

What is the AV node? 

200

How many SMALL boxes equates to 0.20 seconds on ECG

What is 5 SMALL boxes? 

200

This rhythm has two P-waves without a QRS

What is second degree heart block type II? 

200

This rhythm can have a ventricular rate greater than 250, with wide and bizarre QRS 

What is ventricular tachycardia? 
300

Depolarization refers to 

What is electrical conduction and activation of heart muscles? 

300

This node can conduct at a rate of 40-60

What is the AV node? 

300

0.04 seconds refers to how many boxes on ECG

What is one small box? 

300

This heart block has a progressive elongation of its PRI with an eventual P wave that does not produce a QRS 

What is a second degree heart block type I

300

This rhythm is multifocally irritable, generating uncoordinated chaotic impulses that cause an life threatening irregular rhythm 

What is ventricular fibrillation?

400

Repolarization refers to

What is electrical relaxation or "reset" phase of the heart muscles? 

400

This part of the heart is located in the ventricles of the heart and has no intrinsic rate 

What is the Purkinje fibers? 
400

This measurement should not be longer than 0.44 seconds 

What is QT interval?
400

This heart block is regular QRS intervals 

What is second degree type II heart block? 

400

These are the two rhythms that should be defibrillated 

What is pulseless ventricular tachycardia and ventricular fibrillation? 

500

This part of the heart has an intrinsic rate of 20-40

What is Bundle of His/Bundle Branches? 
500

This wave represents ventricular repolarization 

What is T-wave? 

500

A patient has a PRI greater than 0.20 seconds. This represents what rhythm? 

What is a first degree AV block? 

500

This heart block is when no impulses are properly communicating with one another, leading the atrium and ventricles entirely dissociated 

What is complete heart block? 

500

This rhythm has slower ventricle rhythm, no P-waves, and a wide and bizarre QRS

What is idioventricular Rhythm?