EKG + Cardio

Question 1

What should you do if you perform an EKG and it appears to be abnormal?

Answer 1

Keep the electrodes on and call for the Dr.

Question 2

Where should electrodes be placed on the legs?

Answer 2

Just above the ankle

Question 3

What should patients not do while obtaining an EKG?

Answer 3

No talking

Question 4

What needs to be done before placing electrodes on the skin?

Answer 4

Clean skin with alcohol

Question 5

In what direction should the tabs be placed for the arms during an EKG?

Answer 5

Downward to prevent pulling of the leads

Question 6

What position should the patient be in when obtaining a 12 lead EKG?

Answer 6

Supine

Question 7

What is the normal standardization mark on an EKG?

Answer 7

10mm/mV

Question 8

What is the last thing you should check to ensure the EKG tracing is clear?

Answer 8

Double check electrode placement

Question 9

What test does not require a license?

Answer 9

Holter monitor

Question 10

What cardiac procedure is within the MA’s scope of practice?

Answer 10

Holter monitor placement

Question 11

What is the correct location for the placement of lead 4?

Answer 11

5th intercostal space midclavicular

Question 12

What directions do the tabs need to be facing when performing an EKG?

Answer 12

Down

Question 13

What are the correct locations for V leads?

Answer 13

• V1: Right side of the sternum at the 4th intercostal space
• V2: Left side of the sternum at the 4th intercostal space
• V3: Left side of the chest between V2 and V4
• V4: Left side of the chest 5th intercostal space midclavicular line
• V5: Left side of the chest 5th intercostal space between V4 and V6
• V6: Left side of the chest 5th intercostal space midaxillary line

Question 14

What should be done if a lead is not correctly placed or is missing?

Answer 14

It will cause an interrupted baseline meaning the EKG tracing will move to the margins of the paper

Question 15

What causes a wandering baseline in EKG?

Answer 15

Poor connection, shifts from the baseline of the paper

Question 16

What can cause AC interference during an EKG?

Answer 16

Cell phone use

Question 17

How do you obtain a heart rate from an EKG?

Answer 17

Divide 1500 by the number of small boxes between 2 R waves

Question 18

What is the normal PR interval time?

Answer 18

0.12 - 0.20

Question 19

What is the color of the ground lead?

Answer 19

Green lead

Question 20

What does the P wave represent?

Answer 20

Atrial depolarization

Question 21

What does the QRS complex represent?

Answer 21

Ventricular depolarization

Question 22

What does the T wave represent?

Answer 22

Ventricular repolarization

Question 23

What is the heart’s primary pacemaker?

Answer 23

SA Node

Question 24

What does the AV Node do?

Answer 24

Sends signals to contract the ventricles

Question 25

What should be done with the patient's skin prior to placing leads for Holter Monitoring?

Answer 25

Dry skin prior to placing leads

Question 26

What should patients record while wearing a Holter monitor?

Answer 26

Feelings/symptoms into their notes

Question 27

What does the Holter monitor do?

Answer 27

Continuously records the electrical activity of the heart

Question 28

What should you avoid while wearing a Holter monitor?

Answer 28

Caffeine