EKG 2

How many electrodes make up the 12 lead EKG?

• 12

• 10

• 14

• 8

The standard leads are comprised of which of the following leads?

• AVR, AVL, AVF

• Lead one, two and three

• V leads

• both a and b

When the monitor shows a straight line, you should begin troubleshooting by checking which of the following?

• attachment of the lead wire

• on-off switch

• lead selector

• all of the above

Which wave form would not be seen in a normal EKG?

• P wave

• QRS

• V wave

• T wave

Which of the patient's limbs are the ground lead?

• right leg

• left leg

• right arm

• left arm

A positive wave will be pointing in which of the following directions?

• upward

• downward

• toward the negative connection

• away from the negative connection

Poor electrode contact can cause which of the following?

• wandering baseline

• intermittent loss of signal

• false low rate alarms

• all of the above

Multi-channel recordings...

• take more time

• take less time

• are not necessary

• none of the above

A small wave sometimes appearing between the T wave and P wave is which of the following?

• U wave

• V wave

• W wave

• M wave

the device that detects skin voltage is which of the following?

• amplifier

• galvanometer

• sensor

• none of the above