What is the general function of an Electrocardiograph (ECG)?
DBV30053 Unit 2.1: Electrocardiograph

Quiz
•
Biology
•
University
•
Easy
Syahida Azmi
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Measuring lung capacity
Detecting electrical signals associated with cardiac activity
Monitoring oxygen levels in the blood
Measuring blood pressure
Answer explanation
The general function of an Electrocardiograph (ECG) is detecting electrical signals associated with cardiac activity.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of Einthoven's triangle in electrocardiography?
Recording blood pressure
Determining the electrical axis of the heart
Analyzing lung function
Measuring muscle tremors
Answer explanation
Einthoven's triangle is used in electrocardiography to determine the electrical axis of the heart, not for recording blood pressure, analyzing lung function, or measuring muscle tremors.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be done to prevent possible damage to the keypad of an electrocardiograph?
Do not use sharp or hard objects to press keys
Use excessive force to press keys
Clean the keypad with water and soap
Store the device in a humid environment
Answer explanation
To prevent possible damage to the keypad of an electrocardiograph, do not use sharp or hard objects to press keys.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main cause of AC interference in an ECG machine?
Electricity leakage from the ECG machine
Muscle tremors
Incorrect paper usage
Expired paper usage
Answer explanation
The main cause of AC interference in an ECG machine is electricity leakage from the ECG machine.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a Patient Simulator in testing an ECG machine?
To clean the internal printer of the ECG machine
To check heartbeat reading on the ECG machine using the simulator
To measure blood pressure
To analyze lung function
Answer explanation
The function of a Patient Simulator in testing an ECG machine is to check heartbeat reading on the ECG machine using the simulator.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the P waves, QRS complex, and T waves in an ECG waveform?
They indicate oxygen levels in the blood
They detect muscle tremors
They vary in amplitude and polarity
They measure blood pressure
Answer explanation
The significance of the P waves, QRS complex, and T waves in an ECG waveform is that they vary in amplitude and polarity.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be done to avoid a possible explosion when using an electrocardiograph?
Use the device with wet hands
Use the device in a confined space
Use the device near flammable substances
Do not use the electrocardiograph in the presence of flammable anaesthetics
Answer explanation
Do not use the electrocardiograph in the presence of flammable anaesthetics
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