Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ECG > Winter ECG Quiz 2 > Flashcards

Winter ECG Quiz 2 Flashcards

0
Q

Which leads look at the septal wall?

A

V1, V2

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

Which leads are positioned to look at the inferior wall of the left ventricle?

A

II, III, AVF

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

Which leads look at the anterior wall of the left ventricle?

A

V3, V4

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

Which leads look at the lateral wall of the left ventricle?

A

I, aVL, v5, v6

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

Which areas of the heart are perfused by the LAD?

A

Anterior wall of L. Ventricle
Lateral wall of L. Ventricle
Intraventricular septal wall

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

Which areas of the heart are perfused by the LCA (left circumflex artery)?

A

Inferior wall of L. Ventricle
Lateral wall of L. Ventricle
Posterior wall of L. Ventricle
R. Ventricle

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

Which areas of the heart are perfused by the R. Coronary artery?

A

Inferior wall of the L. Ventricle
Posterior wall of the L. Ventricle
R. Ventricle

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

How much time does a 12-lead represent?

A

10 continuous seconds (each lead is 2.5 seconds)

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

What is normal calibration of an ECG?

1mV=?mm

A

1mV=10mm

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

Where is the best location on an ECG strip to locate the isoelectric line?

A

The TP segment

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

In which leads will there be upright pwaves if a sinus rhythm?

A

I, II, aVF, V4, V5, V6

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

Which lead will show an inverted P if it is a sinus rhythm?

A

aVR

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

What is the aVR lead good for?

A

Detecting the presence of a P-wave

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

Which 2 leads are best for determining whether or not it is a sinus rhythm? (P-wave)

A

Upright in II

Inverted in aVR

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

What are the 3 reasons for a p-wave to NOT be inverted in aVR?

A
  1. Junctional rhythm
  2. Lead reversal
  3. Dextrocardia (heart on the right)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What should you do if you have upright pwaves in both aVR and II?

A

Check your leads - they are likely reversed

16
Q

What is considered “significant” elevation or depression?

A

> or = 1mm

17
Q

In addition to coronary clots, name 5 other causes of MI.

A 
Coronary artery spasm
Cocaine use
Acute volume overload
Acute respiratory failure
Trauma
18
Q

What are some ECG signs of ischemia?

A

ST depression

Flipped t-wave

19
Q

What are 2 ECG signs of cardiac “injury”?

A

ST elevation

Flipped T

20
Q

What are 3 ECG findings of cardiac tissue death (infarction)?

A

ST elevation
Flipped T
Pathological Q

21
Q

What constitutes “contiguous” leads?

A

Any 2 adjacent precordial leads
Inferior: II, III, aVF
Lateral: I, aVL, V5, V6

22
Q

Right sided MI’s most often occur in conjunction with which other part of the heart? Why?

A

Inferior - their blood supply comes from the same place.

23
Q

Septal MI: which artery is involved?

Which other area of the heart is usually involved in conjunction with a septal MI?

A

LAD

Anterior

24
Q

Where will you typically see ST elevation in an anterior MI?

A

V3, V4

25
Q

What artery is involved in an anterior MI?

A

LAD

26
Q

An anterior MI almost always occurs in conjunction with what?

A

Septal or lateral MI

27
Q

A lateral MI can occur in conjunction with what other part of the heart?

A

Any part!

28
Q

A lateral MI shows ST elevation in which leads?

A

I, aVL, V5, V6

29
Q

Which artery is involved in a lateral MI?

A

LAD

30
Q

What types of t-wave abnormalities may be associated with an AMI?

A

Hyper acute

Inverted

31
Q

What defines a hyper acute t-wave?

A

> 10mm in the precordial leads

>6mm in limb leads

32
Q

At what stage of a STEMI are hyper acute t-waves typically seen?

A

Early! They are commonly missed because they are short lived.

33
Q

In the presence of a STEMI, when do you typically see pathological Q waves?

A

Pathological Q waves are usually the last thing to develop.

6 hrs after the start of an MI at the earliest

34
Q

What are the 2 areas of the heart a traditional 12-lead is not designed to view?

A 
Right side (R. Ventricle MI)
Posterior MI
35
Q

R. Sided MI’s are rarely isolated and are most commonly associated with which type of MI?

A

Inferior MI

36
Q

What ECG findings should give a high index of suspicion for a posterior MI?

A

ST depression in V1 & V2

ECG (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions