Chapters 6, 7, & 8 ECG Quiz

Which of the following is a function of an ECG?

• To measure cardiac muscle hypertrophy

• To identify cardiac output

• To measure the mechanical contraction of the heart

• To detect previous myocardial events

What is the purpose of the grounding electrode?

• To capture any heart irregularities

• To capture any arrhythmias

• To measure heart muscle activity

• To reduce electrical interference from outside of the body

The electrode for what lead is placed on the right side of the sternum at the 4th intercostal space?

• Lead V3

• Lead V4

• Lead V1

• Lead V2

What is the universal precordial lead color for the electrode placed in the 5th intercostal space at the mid-axillary line?

• Orange

• Red

• Yellow

• Purple

The first three limb leads are identified as Lead I, Lead II, and Lead III and are all what type of leads?

• Augmented

• Bipolar

• Ground

• Unipolar

Which of the following can be made of foam, cloth, or wet gel and come in various sizes from neonate, infant, pediatric, and adult?

• Electrodes

• Leads

• Cables

• Clips

Why are ECG electrodes attached to the skin?

• To help with the conduction of the sound

• To measure heart muscle activity

• To transfer the sound

• To capture any patient events

On an ECG, what measures the direction and intensity of voltage being discharged by the heart at a specific time?

• Leads

• Clips

• Cables

• Electrodes

Leads v4, v5, and v6 may be moved to the posterior axillary line thru the paraspinal line (v7, v8, v9) if the physician wants an alternate heart view based on suspected damage in what part of the heart?

• Posterior

• Right atria

• Right ventricle

• Anterior

In placing precordial leads, be sure to affix all the electrodes on the left side of the sternum with the exception of which lead?

• V1

• V2

• V3

• V4