EKG ch 3-4

How many electrodes are on a 12 lead EKG?

• 12
• 9
• 10
• 6

Which of the following is not a type of lead?

• Augmented
• Precordial
• Input
• Limb

What are the three basic foundations of an EKG?

• Input, signal processing, output display
• Input, recording, timer
• Impulses, recording, output
• Input, output, electricity

When labeling the EKG tracing paper, what is labeled on the vertical line?

• Time
• Height
• Voltage
• Distance

Where is lead V4 placed?

• fourth intercostal space, right sternal border
• fifth intercostal space at the midclavicular
• halfway between V2 and V4
• fourth intercostal, left sternal border

What is the output display?

• The part of the EKG machine that displays the tracing
• Data entered into the machine
• The process that amplifies the electrical impulse
• A control on the machine that regulates how fast or slow the paper goes

The einthoven triangle is formed by using which of the following placement sites?

• Right arm, left arm, left leg
• Right arm, left leg, right leg
• Right arm, middle of chest, left leg
• None are correct

where is V6 placed?

• At the Anterior axillary line on the same horizontal level as V4
• Fifth Intercostal space at the midclavicular line
• Fourth intercostal space, left sternal border
• At the midaxillary line on the same horizontal level as V4

What is the normal value for the QRS

• .12-20
• .04 m/s
• .04-.10
• 25 mm

What is normal paper speed?

• 25mm/s
• 20mm/s
• 24mm/s
• 30mm/s