Introduction to EKG Technology and Applications Chapter 5

The basic electrical activity of the heart is recorded by which machine?

• EEG machines

• EKG machines

• MRI machines

• CT scanners

The basic electrical activity of the heart is recorded by EKG machines. What does EKG stand for?

• Electrocardiogram

• Electroencephalogram

• Electromyogram

• Electrogastrogram

During depolarization the cells _________.

• become more positive inside

• become more negative inside

• remain unchanged

• release neurotransmitters

The basic electrical activity of the heart is recorded by EKG machines. What does EKG stand for?

• Electrocardiogram

• Electroencephalogram

• Electromyogram

• Electrogastrogram

The difference between electrodes, leads, and lead wires is:

• Electrodes are sensors, leads are the pathways, and lead wires connect electrodes to the machine.

• Electrodes are the pathways, leads are sensors, and lead wires connect the machine to the power source.

• Electrodes connect the machine to the power source, leads are sensors, and lead wires are the pathways.

• Electrodes are the pathways, leads connect electrodes to the machine, and lead wires are sensors.

True or False? Electrocardiogram and echocardiogram are different names for the same test.

• True

• False

The basic electrical activity of the heart is recorded by EKG machines. What does EKG stand for?

• Electrocardiogram

• Electroencephalogram

• Electromyogram

• Electrogastrogram

The portable EKG machine is used to:

• Monitor heart activity

• Measure blood pressure

• Check body temperature

• Analyze blood sugar levels

Define the following term: voltage.

• difference in electrical charge.

• a measure of current flow.

• resistance to electrical flow.

• a type of electrical circuit.

The portable EKG machine is a device used for what purpose?

• Monitoring heart activity

• Measuring blood pressure

• Checking body temperature

• Assessing lung function