Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

ECG and the Heart > ECG 1 > Flashcards

ECG 1 Flashcards

(44 cards)

Start Studying
1
Q

What is an electrocardiogram a recording of?

A

Voltage in respect of time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is the ground electrode located on a patient?

A

Right leg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Define depolarization

A

contraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are leads I, II, III?

A

Standard or bipolar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where must limb sensors be placed in order to obtain an accurate ECG?

A

Upper arms and lower legs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the devices that attach to the skin called?

A

Sensors or electrodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What setting controls the amount of voltage represented on the tracing?

A

Amplitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does vertical deflection from the baseline on the ECG represent?

A

Voltage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the reference mark to determine amplitude?

A

Standardization mark

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are aVR, aVL, aVF known as?

A

Augmented Leads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the SA Node?

A

It initiates and regulates heartbeat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

List the characteristics of cardiac muscle

A
  • It’s striated
  • Has dark Z lines
  • Can contract without being triggered by nerve impulse
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What valve is located between the left atrium and left ventricle?

A

Bicuspid valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the right and left side of the heart separated by?

A

Septa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Define Parietal Pericardium

A

The loose fitting sac that covers the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the foramen ovale and what is it called after birth?

A
  • A depression in the inter-atrial septum

- Fossa Ovalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

List the layers of the heart and their function

A
  • Epicardium (outer layer)
  • Myocardium (middle layer)
  • Endocardium (inner layer)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where is deoxygenated blood pumped into?

Study These Flashcards
A

Pulmonary veins

19
Q

Define stroke volume

Study These Flashcards
A

The volume of blood pumped by each ventricle in 1 beat

20
Q

Define cardiac output

Study These Flashcards
A

The volume of blood pumped by each ventricle in 1 minute

21
Q

What part of the heart receives oxygenated blood from the pulmonary veins?

22
Q

Where does the right ventricle pump the blood into?

Study These Flashcards
A

Pulmonary arteries

23
Q

List the 4 chambers of the heart

Study These Flashcards
A

Right atrium
Left atrium
Right ventricle
Left ventricle

24
Q

Name the heart valves

Study These Flashcards
A

Tricuspid
Bicuspid
Pulmonary semilunar valve
Aortic

25
Define polarization
where electrical charges are balanced
26
Define Re-Polarization
Re-Contraction
27
What is the blood circulation pattern?
The blood enters the right atrium from the superior and inferior vena cava - Goes through tricuspid valve - Into right ventricle - Through pulmonary semilunar valve - Through pulmonary artery - Into the lungs - Into pulmonary veins - Into left atrium - Through bicuspid valve - Into left ventricle - Through aortic valve - Into aorta
28
What is standard calibration of ECG machine?
10 mm per 1 millivolt
29
How fast does ECG paper trace?
25 mm per second
30
What is the function of aVR?
voltage difference between right arm and central point between left arm and leg
31
What is the function of aVF?
Voltage difference between left leg to central point between right and left arm
32
What is the function of aVL
voltage difference between left arm to central point between the right arm and left leg
33
List the leads and their location
- V1: 4th intercostal space at right margin of sternum - V2: 4th intercostal space on left side of sternum - V3: midway between position 2 and 4 - V4: 5th intercostal space at junction of left midclavicular line - V5: Horizontal level of position 4 at left anterior axillary line - V6: Horizontal level of position 4 at left midaxillary line
34
Define P Wave
atrial depolarization
35
Define QRS Complex
ventricular depolarization
36
Define T Wave
ventricular repolarization
37
What is P-R Segment?
end of P Wave to the beginning of QRS Complex
38
What is S-T Segment?
end of QRS Complex to beginning of T Wave
39
What is P-R Interval?
Beginning of P Wave to the beginning of QRS Complex
40
What is Q-T Interval?
Beginning of QRS Complex to the end of T Wave
41
What is an artifact?
Interference of ECG results
42
List ECG artifacts
Muscle Artifact (inconsistent) Wandering Baseline Alternating Current Artifact (consistent) Interrupted Baseline
43
What is the Holter Monitor Used for?
- To detect arrhythmia - To assess the function of a pacemaker - To assess medication efficacy - To find the cause of unexplained fainting
44
Color and placement of Holter Monitor electrodes
White: right side under clavicle Brown: left side under clavicle Black: left side, fourth intercostal space Red: left side, fifth intercostal space, midaxillary line Green: right side, any flat surface, usually opposite red electrode

ECG and the Heart (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions