The heart

What is the correct order of the electrical system of the heart?

• AV node, SA node, purkinje fibers, bundle branches, bundle of His

• SA node, AV node, bundle of His, bundle branches, purkinje fibers

• Purkinje fibers, SA node, AV node, bundle branches, bundle of His

• Bundle of His, Bundle branches, AV node, SA node, purkinje fibers

Which rhythm(s) can you defibrillate

• Atrial fibrillation

• Pulseless V-tach

• V- tach

• Ventricular fibrillation

Which rhythm is regular, and has a characteristic "sawtooth" appearance?

• Atrial fibrillation

• Ventricular fibrillation

• Atrial flutter

• Ventricular flutter

Which lead placement is at the 5th intercostal space, midclavicular?

• V1

• V5

• V2

• V4

40-60 BPM is the inherent rate of the

• SA node

• AV junction

• Ventricles

• Bundle of His

The "pacemaker" of the heart.

• SA node

• AV node

• AV junction

• Ventricles

The most life-threatening dysrhythmia.

• Pulseless V-tach

• Atrial flutter

• Ventricular fibrillation

• V-tach

Which heart valve is located between the left ventricle and left atrium?

• aortic valve

• tricuspid valve

• mitral valve

• bicuspid valve

Tracing the blood flow through the heart, you know blood would go from the right ventricle to the

• pulmonary valve

• pulmonary vein

• pulmonary artery

• aortic valve

A normal QRS interval is

• .1-.2

• .04-.2

• .04-.11

• .1-.11