Atrial Enlargement Flashcards
1
Q
What two leads need do you need to look at to evaluate p waves for right atrial enlargement?
A
Lead 2
Lead V1
2
Q
What P wave amplitude would be abnormal
A
greater than 2.5 boxes
3
Q
What P wave duration would be abnormal?
A
greater than 3 boxes
4
Q
How tall of a p wave amplitude in V1 would you need to consider right atrial enlargement?
A
taller than 1.5 boxes in the first part of the wave
5
Q
What increases (amplitude or duration) with left atrial enlargement?
A
Duration
6
Q
On Lead V1 when looking for left atrial enlargement, what part of the biphasic wave will be altered?
A
The second half of the biphasic wave will be longer in duration
7
Q
A notched or “m” shaped P wave is observed in lead 2, what could you conclude about the atria?
A
Left-sided Atrial enlargement
