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Cardiology Year 2 > EKG > Flashcards

Flashcards in EKG Deck (7)
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1

What is the order to follow when analyzing EKG?

Rate
Rhythm
Intervals (PR, QRS, QT)
Axis
P wave
QRS wave
ST interval

2

What are the normal intervals for
PR?
QRS?
QT?

PR < 0.12 or LBBB or RBBB
QT

3

What are the values for
Normal Axis?
Left Axis Deviation?
Right Axis Deviation?
Extreme Right Axis Deviation?

I+ and AVF+
I+ and AVF-
I- and AVF+
I- and AVF-

4

What are the leads evaluated for P wave?

II
V1

5

What are the values for the P wave for
Normal?
Right Atrial Enlargement?
Left Atrial Enlargement?

P wave

N: II < 1 mm high and LA < 1 mm down and wide

RAE: II >/= 3 mm high
RAE: V1 RA > 1 mm tall

LAE: II > 3 mm wide
LAE: V1 > 1 mm down and wide

6

What does the QRS evaluate?

LBBB
RBBB
LVH
RVH
MI anterior
MI inferior

7

What leads indicate
LBBB?
RBBB?

QRS >/= 0.12

LBBB:
V6 + QRS and ST depression in leads with late positivity
V1 normal - QRS (+ST)

RBBB:
V1 RSR' with broad R' and ST depression in leads with late QRS positivity
V6 normal

Note: LBBB is similar to LVH, so further analysis necessary