The _____ is considered the pacemaker of the heart.

•  

  AV bundle

  
  

•  

  Purkinje fibers

  
  

•  

  SA node

  
  

•  

  AV node

  
  

This artifact occurs when poor skin preparation occurred.

•  

  Wandering baseline

  
  

•  

  Interrupted baseline

  
  

•  

  AC interference

  
  

•  

  Somatic tremor

  
  

This type of artifact looks choppy and is caused by patient movements such as shivering or Parkinson's Disease.

•  

  Somatic tremor

  
  

•  

  Wandering baseline

  
  

•  

  AC interference

  
  

•  

  Interrupted baseline

  
  

How many electrodes are used in a 12 lead ECG?

• 4

• 6

• 10

• 12

What does the white lead wire represent?

• Left arm

• Right leg

• Left leg

• Right arm

Why might limb electrodes be placed on the torso?

• To reduce motion artifact

• Because it's easier

• To improve the accuracy of the ECG

• To use fewer electrodes

left leg

• green

• white

• black

• red

What is the standard paper speed for an ECG machine?

• 25 mm/sec

• 50 mm/sec

• 0.25 mm/sec

• 0.50 mm/sec

The horizontal reading on the ECG paper represents ______, and the vertical readings represent ______.

• voltage, time

• time, height

• time, voltage

• voltage, millivolts

What is this rhythm?

• Accelerated Junctional Rhythm

• Ventricular Tachycardia

• Torsades De Pointes

• Ventricular Fibrillation