12 Lead ECG

How many electrodes/ leads are there?

• 8

• 10

• 12

• 14

Where does the first intercostal space begin?

• Under the clavicle

• Before the first rib

• On the first rib

• After the first rib

Where is the first electrode placed?

• 2nd intercostal space

• 3rd intercostal space

• 4th intercostal space

• 5th intercostal space

Where is the 2nd electrode placed?

• 2nd intercostal space

• 3rd intercostal space

• 4th intercostal space

• 5th intercostal space

Where is electrode 4 placed?

• 2nd intercostal space

• 3rd intercostal space

• 4th intercostal space

• 5th intercostal space

What type of ink does an ECG machine use?

• Black laser jet ink

• Navy blue ink

• permanent black EG ink

• ECGs don't use ink

How could you clean the skin to ensure good electrode sticker adherence?

• Shave the skin

• Steret/ 70% alcohol swab

• soap and water

• spit and tissue

What ideal position would a person be in to perform an ECG?

• Lying flat

  (180 degree)

• Sitting upright

  (90 degree)

• semi recumbent (30 - 45 degree)

• It doesn't matter about position as long as they remain still