EKG Ch 5 - Intro to EKG technology

Before starting a 12-lead EKG on a patient you should always make sure to plug in the machine - why?

• To assure that the patient is grounded

• To assure that the patient knows they have to sit still because the machine is not mobile

• To assure there is no power loss during the EKG testing

• To assure that the machine has enough electricity to reach the patient

IF a doctor wants information regarding a patients heart over an extended period of time he might use a:

• Holter monitor

• 12-lead EKG

• Nothing allows him to do this

• Echocardiogram

Why do we use 12 leads for an EKG?

• So we can see fewer views of the hearts electrical activity

• So we can see more views of the hearts mechanical activity

• To provide the MD with different views of the heart's electrical activity

• To provide the MD with different views of the heart's mechanical function

Where would you place the electrode for V3?

• 5th intercostal space left midclavicular line

• Between electrodes V2 and V4

• 4th intercostal space just to the right of the sternum

• Horizontally even with V4 and V5 in the left midaxillary line

Where would you place the electrode for V4?

• Horizontally even with V4 and V5 in the left midaxillary line

• 4th intercostal space just to the left of the sternum

• 5th intercostal space left midclavicular line

• 4th intercostal space just to the right of the sternum

How do you know how to properly store electrodes?

• Ask your supervisor

• Read the care plan

• Read the manufacturer's directions

• Ask another team member

What is the proper way to change the height of the deflection seen on the EKG?

• Increasing or decreasing the gain

• Increasing or decreasing the paper speed

• Increasing or decreasing the voltage meter

• It cannot be change it is the reflection of the heart's electricity

Where would you place the electrode for V6?

• 5th intercostal space left midclavicular line

• Between electrodes V2 and V4

• 4th intercostal space just to the right of the sternum

• Horizontially even with the V4 and V5 in the left midaxillary line

Which leads are called the augmented limb leads?

• aVR

• aVL

• aVF

• All of the above

aVR, aVL, and aVF are what type of leads?

• Augmented limb leads

• Einthoven's triangular leads

• Midaxillary leads

• Precordial leads