Conduction
Anatomy
ECG
How do EKGs work
Wave Forms
100

What is the pacemaker of the heart?

What is SA Node

100
About the size of a human fist.
What is the size of a human heart.
100

What is the HR for NSR?

60-100

100

What small sticky pads are used to detect the heart's electrical signal?

What are electrodes

100

Point to the P wave


Correct

200

What is the backup pacemaker of the heart?

The Av node.

200

How many chambers of the heart are there?

Four

200

What is the HR for Sinus tachycardia? 

greater than 100

200
What two things are leads connected to?

What is the patient and the EKG device

200

What comes after the p wave but before the QRS?

PR interval

300

What is the intrinsic rate of the AV node?

40-60 BMP

300

What muscular wall of the heart called?

What is myocardium

300

Your r-r is irregular, and there are no defined P waves. What arrhythmia is it?

Afib

300

What is a cardiac cycle?

The cardiac cycle is the sequence of events that occur during one complete heartbeat.

300
Represents ventricular recovery or repolarization.
What is t-wave
400

What is located after the AV node before the left and right bundle branches?

What is the Bundle of His.

400

What are the four valves of the heart?

Tricuspid Valve

Pulmonary Valve

Mitral Valve

Aortic Valve

400

What are the twp arrhythmias not compatible with life?

Asytole and VFIB

400

The two measurements on a grid paper are _____ and _____. (fill in the blank)

what is voltage and time,

400

Represents the end of ventricular conduction and the beginning of recovery; a change may indicate MI

What is ST segment

500

Can you describe a normal heart conduction pathway?

SA node, nodal pathways, AV node, buddle of his, L/R buddle branches to the Purkinje fibers 

500

Can you describe how blood flow through the heart?


Right atrium: Deoxygenated blood in.

Right ventricle: Pumps to lungs.

Lungs: Oxygen in, carbon dioxide out.

Left atrium: Oxygenated blood in.

Left ventricle: Pumps to body.

Body: Uses oxygen, returns deoxygenated blood to star

500
May be seen with excessive moving; the baseline appears wavy, bumpy and tremulous.
What is artifact
500

How does an EKG work?

The EKG machine amplifies the electrical signals to make them more visible on the EKG strip or monitor and records them in real-time.

500

What does the QRS wave represent

Ventricular depolarization

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