ECG

Quiz
•
Biology
•
12th Grade - University
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which one of the following descriptions or statements about an electrocardio-
gram (ECG) is NOT correct?
A. It is a record of the voltage changes (as measured at the body surface) due
to the depolarisation of the muscle cells of the heart as it beats.
B. The potentials measured by the ECG electrodes are combined in various
ways to give 12 different ECGs.
C. The ECG consists of the electrical events that follow the depolarisation of
ventricles (PQR section), the depolarisation of atria (the S section) and the
repolarisation of the ventricles (the T section).
D. The value of the potential difference called “limb lead II” varies with time
to produce the familiar ECG trace – a graph of voltage vs time.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following does limb lead II of a typical electrocardiogram
represent?
A. A graph of the variation of voltage produced by the heart against time.
B. The voltage at right arm (RA) plus the voltage at left leg (LL).
C. The electrical events that precede the contraction of the ventricles.
D. The projection of the electric dipole vector of the heart on the line from left
arm (LA) to right arm (RA).
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What view of the heart do leads V1 and V2 represent?
A
Septal
B
Lateral
C
Anterior
D
Inferior
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What would it suggest if lead I became more positive than lead II and lead III ?
A
Left axis deviation
B
Right axis deviation
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which artery is most likely to be affected in the context of ST elevation being present in leads V3 and V4?
A
Left circumflex coronary artery
B
Left anterior descending coronary artery
C
Right coronary artery
D
All of the above
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If ST-elevation was noted in leads II, III and aVF, what would it suggest?
A
A septal myocardial infarction
B
A posterior myocardial infarction
C
An anterior myocardial infarction
D
An inferior myocardial infarction
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the duration of a normal PR-interval?
A
0.04 - 0.12 seconds (1-3 small squares)
B
0.08 - 0.12 seconds (2-3 small squares)
C
0.12 - 0.2 seconds (3-5 small squares)
D
0.04 - 0.08 seconds (1-2 small squares
Create a free account and access millions of resources
Similar Resources on Wayground
15 questions
Hbs Heart

Quiz
•
9th - 12th Grade
20 questions
ECG quiz

Quiz
•
University
16 questions
CHAPTER 8 QUIZ

Quiz
•
12th Grade
18 questions
Heart Structure

Quiz
•
11th - 12th Grade
15 questions
Concurso de ECG para residentes 2024

Quiz
•
University
20 questions
Quiz 2: Electric Boogalooz

Quiz
•
University
18 questions
Medical Terminology - Cardiovascular System

Quiz
•
11th - 12th Grade
13 questions
ECG Strip

Quiz
•
University
Popular Resources on Wayground
10 questions
Video Games

Quiz
•
6th - 12th Grade
20 questions
Brand Labels

Quiz
•
5th - 12th Grade
15 questions
Core 4 of Customer Service - Student Edition

Quiz
•
6th - 8th Grade
15 questions
What is Bullying?- Bullying Lesson Series 6-12

Lesson
•
11th Grade
25 questions
Multiplication Facts

Quiz
•
5th Grade
15 questions
Subtracting Integers

Quiz
•
7th Grade
22 questions
Adding Integers

Quiz
•
6th Grade
10 questions
Exploring Digital Citizenship Essentials

Interactive video
•
6th - 10th Grade
Discover more resources for Biology
16 questions
AP Biology: Unit 1 Review (CED)

Quiz
•
9th - 12th Grade
12 questions
Macromolecules

Lesson
•
9th - 12th Grade
16 questions
AP Biology: Unit 2 Review (CED)

Quiz
•
9th - 12th Grade
20 questions
Cell Transport

Quiz
•
9th - 12th Grade
22 questions
AP Bio Insta-Review Topic 2.1*: Cell Structure - Subcellular Com

Quiz
•
9th - 12th Grade
10 questions
Quick10Q: Organelles

Quiz
•
9th - 12th Grade
14 questions
Investigation 13&2 Review

Quiz
•
9th - 12th Grade
30 questions
Quiz Week 6 Review (9/26/25)

Quiz
•
9th - 12th Grade