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WorksheetsIntroduction to EKG Technology and Applications Chapter 5
Total questions: 25
Worksheet time: 13mins
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
The portable EKG machine is a device used to monitor heart activity. Can you describe what it looks like?
A small, handheld device with electrodes and a display screen
A large, stationary machine with multiple wires and screens
A wearable wristband with a digital display
A smartphone app with no physical components
Define the term 'ambulatory monitoring'.
A type of EKG technology that can record or monitor a patient’s heart rate and rhythm over an extended period while the patient continues with normal life; Holter, event, and mobile telemetry monitors are examples.
A method of measuring blood pressure continuously over 24 hours.
A technique for monitoring glucose levels in diabetic patients.
A system for tracking physical activity and sleep patterns.
Which of the following describes the types of EKG-based tests and their indications?
Holter monitor for continuous monitoring, stress test for exercise-induced issues, and standard EKG for baseline heart activity.
Standard EKG for continuous monitoring, Holter monitor for exercise-induced issues, and stress test for baseline heart activity.
Stress test for continuous monitoring, standard EKG for exercise-induced issues, and Holter monitor for baseline heart activity.
Holter monitor for baseline heart activity, standard EKG for continuous monitoring, and stress test for exercise-induced issues.
Define the term 'mobile cardiac telemetry'.
A type of ambulatory monitor that detects heart rate or rhythm irregularities automatically and transmits data to a healthcare professional when an irregularity occurs.
A device used to measure blood pressure continuously.
A wearable gadget that tracks daily physical activity.
An implantable device that regulates heartbeats.
How is a patient's EKG monitored during telemetry?
A healthcare worker is assigned to stay by the patient's bedside
The patient pushes a button when he has symptoms
Healthcare workers monitor several patient's EKG's at a central monitoring station
A printout is created every 15 minutes for a provider to review
The chest leads may also be called the _______ leads
Bipolar leads
Augmented limb leads
Precordial leads
Einthoven leads
Leads V1, V2, V3, V4, V5 and V6 may be called what?
Chest leads
Augmented limb leads
Bipolar leads
Limb leads
The augmented limb leads are
A1, A2, and A3
V1, V2, V3, V4, V5, and V6
aI, aII, and aIII
aVR, aVL, and aVF
Which of the following is true of stress testing for a patient who is not able to exercise?
Stress testing cannot be conducted.
Stress is created by describing anxiety-creating situations to the patient
Stress is created by injecting a radioactive dye
Stress is created with medications
Limb lead reversal is one of the most common errors in electrocardiography. Which two leads are reversed to cause this error?
LA and LL
RA and LA
RL and LL
RA and RL
Distortion that can generate inaccurate EKG tracings is known as
Interference
Interruption
Error
Artifact
At standard gain, how high is the calibration mark on an EKG tracing?
5 mm
10 mm
15 mm
25 mm
How does gain control change the appearance of an EKG tracing?
Higher settings make higher marks on the paper
Higher settings make lower marks on the paper
Higher settings make the paper move more quickly and spread out the tracings
Higher settings make the paper move more slowly and squeeze the tracings together
What is the default paper speed representing one second of cardiac activity?
10
20
25
50
A provider wants to get a more detailed look at a heart rhythm of a patient with tachycardia. Which of the following settings would be most helpful?
Setting the paper speed to 10 mm/s
Setting the paper speed to 25 mm/s
Setting the paper speed to 50 mm/s
Setting the paper speed to 20 mm/s
