Brainscape's Knowledge GenomeTM

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


See full index

CD II > 6. Axis & 7. Hypertrophy > Flashcards

6. Axis & 7. Hypertrophy Flashcards

1
Q

Axis

what can benignly cause R deviation

A

being tall & thin

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

Axis

what can benignly cause L deviation?

A

obesity/pregnancy

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

which leads do you look at for axis?

A

I and aVF

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

Axis

where are pos/neg ends of Lead I

A
  • pos at the L hand
  • neg at the R hand
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Axis

where are pos/neg ends of aVF?

A
  • pos at foot
  • neg between the hands
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Axis

causes of R axis deviation?

3 (not the causes mentioned above)

A
  1. infarct in LV
  2. RV hypertrophy
  3. vertical heart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Axis

causes of L axis deviation

3

A
  1. Infarct in RV
  2. LV hypertrophy
  3. Horizontal Heart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Axis

Lead I tells us the electricity is moving in which direction

A
  • horizontally –>
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Axis

Lead aVF tells us electricity is moving in which direction

A
  • down, towards foot
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Axis

what is normal axis?

A
  • lead I upright
  • aVF upright
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Axis

what is L axis deviation?

A
  • lead I upright
  • aVF down
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Axis

what is R axis deviation?

A
  • lead I down
  • aVF upright
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Axis

what is extreme R axis deviation

A
  • Lead I down
  • aVF down
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Hypertrophy

what wave on EKG is represented by atrial depolarization?

A

P wave

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

Hypertrophy

where to look for atrial hypertrophy?

A

lead II

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

Hypertrophy

EKG findings of LAE

A
  • p wave > 2.55
  • tall p wave
17
Q

Hypertrophy

why do we see tall p waves with LAE

A

R atrial depolarization is happening on top of L atrial depolarization so they “combine”

18
Q

Hypertrophy

EKG findings of LAE

A
  • wider and notched P wave
  • P wave > 120 ms (3 small boxes)
19
Q

Hypertrophy

why might P wave be double humped w/ LAE

A
  • depolarization falls out of normal step w/ R atria
20
Q

Hypertrophy

what lead to look at for RVH

A

V1/V2

21
Q

Hypertrophy

what lead to look at for LVH?

A

V5/V6

22
Q

Hypertrophy

describe normal QRS progression

A
  • R waves get progressively larger from V1 to V6
  • typically peak in height around V5
23
Q

Hypertrophy

EKG findings for RVH

A
  • reverse R wave progression
  • R waves are largest in V1 and smallest in V4/V5/V6
24
Q

Hypertrophy

EKG findings for LVH

A
  • large S wave in V1/V2
  • Bigger R waves in V5/V6
25
Q

Hypertrophy

formula for measuring if waves meet criteria on EKG for LVH

A

mm of S wave in V1 + mm of R wave in V5 is > 35 mm then LVH is confirmed

26
Q

Hypertrophy

how can we eyeball LVH?

A
  • Seaman’s Sign
  • if R waves touch preceding S waves in precordial leads = LVH
27
Q

Hypertrophy

describe T waves in LVH

A
  • inverted and asymmetric
  • classically best seen in V5, V6

CD II (6 decks)

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