Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Exam 5 Cardiology > EKG > Flashcards

EKG Flashcards

(85 cards)

Start Studying
1
Q

Big boxes on an EKG account for how many seconds?

A

0.20 seconds

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

Small boxes on EKG account for how many seconds?

A

0.04 Seconds

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

A single lead can show?

A

Rate and regularity of rhythm and time to conduct an impulse

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

P wave is indicative of?

A

Atrial depolarization

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

QRS complex is indicative of?

A

Ventricles depolarizing

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

T wave is indicitive of?

A

Ventricles repolarizing

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

PR interval lasts how many seconds?

A

0.12-0.20 seconds

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

QRS interval lasts how many seconds?

A

0.04-0.12 seconds

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

QT interval lasts how many seconds?

A

0.33-0.42 seconds

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

Q wave is the first?

A

Negative deflection

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

Absolute refractory is?

A

Before downslope of T wave and is not capable of being affected by inside or outside forces

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

Upright P waves indicate?

A

Rhythm is coming from atria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Inverted P wave indicates rhythm originates in?

A

AV node or AV junction

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

No P wave indicates rhythm is originating in?

A

AV node and located in QRS which is narrow

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

How do Junctional rhythms appear on the EKG?

A

Inverted P wave before QRS
Absent P wave
Inverted P wave after QRS

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

The rythm containing no P wave and wide QRS originates in?

A

Purkinje system or ventricles

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

Six second method counting can be used with which rhythms?

A

Regular or irregular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The RR interval is used how?

A

Counting big boxes between R waves divide into 300

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which counting methods are only used with regular rhythms?

A

RR interval and triplicate method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the only Irregularly Irregular rhythm?

A

AFIB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

More P waves than QRS occurs with which rhythms?

A

AV HEART BLOCKS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Define sinus bradycardia

A

Sinus rhythm with rate less than 60

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

When is a rhythm classified as a symptomatic bradycardic?

A

BP less than 90, decreased mental status, pulmonary edema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are 2 times atropine is stopped?

A

Heart rate is greater than 60 and atropine is maxed out at 3 mg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Which sinus rhythm is irregular with normal P wave, QRS, T waves?
Sinus Arrhythmia
26
Which rhythm contains normal sinus with period of flatline?
Sinus Arrest
27
Sinus tach is classified as a sinus rhythm with a rate greater than?
100bpm
28
Premature atrial contractions usually occur where?
On previous T wave
29
A rhythm with varying P waves and a rate 45-100 is considered to be called a ?
Wandering Pacemaker
30
How does Atrial Flutter appear?
Sawtooth
31
F waves are seen in which rhythm?
Atrial Flutter
32
Which rhythm, atrial flutter or atrial fibrillation is regular?
Atrial flutter
33
AFIB is only treated if the rate is greater than?
180
34
If P waves are all upright but look different, the rhythm is originating from?
Different sites in the atria
35
If P waves are upright and the QRS is wide, the rhythm is originating from?
Atria
36
If P waves are inverted, the rhythm is originating from?
AV junction
37
If P waves are not present and the QRS is narrow, the rhythm is originating from the?
AV junction
38
If P waves are not present, and the QRS is wide, the rhythm is originating from?
The ventricles
39
The PR interval will determine if what exists?
AV block
40
If the PR interval is less than 0.20 seconds, a block?
Does not exist
41
If the PR interval is greater than 0.20 seconds, a block?
Does exist
42
If the QRS is wide, with no P waves present, the rhythm is originating in?
The Ventricles
43
Normal rates for junctional rhythm?
40-60
44
What is the pacemaker for junctional rhythms?
AV junction
45
The ST segment is used for determining?
Damage to heart muscle
46
An elevated ST segment is usually indicative of?
Current infacrt
47
If T wave is inverted, this may indicate?
previous or current ischemia
48
What is the regularly irregular rhythm?
Bigeminal PVC
49
What occurs during a R on T phenomenon?
Heart is trying to contract during resting period
50
When are PVCs classified as malignant PVCs?
More than 6 per minute, PVCs with chest pain, multifocal PVCs, Couplets, Runs of VTACH, R on T phenomenon, Bradycardia and hemodynamically unstable
51
What are the concerns (in order) with treating PVCs?
Rate Rhythm BP
52
3 or more PVCs in a row is called?
Run of VTACH
53
What is the normal rate for an idioventricular rhythm?
15-40
54
Torsades is caused by?
Prolonged QT, post surgery, low magnesium
55
What is the dug of choice for torsades?
2GM magnesium sulfate in 100cc bag over 6-10 minutes
56
More course Vfib =?
Less down time
57
What leads are included in the inferior grouping of a 12-lead?
II, III, aVF
58
What leads are included in the anterior grouping on 12-lead?
V3, V4
59
Which leads are included in the lateral grouping on a 12 lead?
1, aVL, V5, v6
60
Where should V1 lead be placed?
4th intercostal space, right sternal border
61
Where should the V2 lead be placed?
Left sternal border
62
T wave inversion indicates?
Ischemia
63
ST elevation indicates?
Injury
64
ST elevation is measured starting at the?
J point
65
ST depression indicates?
Ischemia
66
What does ST depression (alone in anterior leads) indicate?
A posterior MI
67
Pathological Q waves indicate?
Infarction
68
A q wave must be how wide to indicate infarct?
1 small box
69
Which leads are considered septal leads?
V1 and V2
70
If inferior portion of the heart is in MI, which artery are involved?
Right coronary artery
71
If anterior portion of the heart is in MI, which artery is involved?
Left ascending
72
If inferior lead injury is noted what should be done?
V4R
73
How is a V4R conducted?
Moving V4 to the right side | Remove V1 and V2 leads
74
In einthovens triangle, the direction from the negative to the positive electrode is the?
Leads axis
75
Which leads help view the left ventricle and septum?
Precordial leads
76
Where is the positive electrode in lead 2 usually placed?
Apex of the heart on the chest wall
77
Where is the negative electrode in lead II placed?
Below right clavicle
78
A prolonged PRI indicates a delay in which node?
AV
79
How does ischemia appear on an ECG?
ST segment depression or an inverted T wave
80
Which leads view the anterior surface of the heart?
Leads V1-V4
81
Which leads can view the inferior portion of the heart?
II, III, aVF
82
Explain enhanced automaticity.
This condition results when ectopic foci automatically depolarize and produce ectopic beats
83
How is Pericarditis represented on an EKG?
ST elevation in all or nearly all leads with concave shaped T waves
84
Which leads are included in augmented leads?
I, II, II, AVR, AVF, AVL
85
Lead 1 looks at which part of the heart?
Lateral

Exam 5 Cardiology (7 decks)

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