P waves Flashcards
(8 cards)
1
Q
Monophasic in
A
lead II
2
Q
biphasic in
A
Lead V1
3
Q
amplitude
A
limb leads–– <2.5 mm
Chest leads – 1.5 mm
4
Q
best assessed in
A
leads II, III and AVF
5
Q
P pulmonale
A
> 2.5mm in limb leads
6
Q
P mitrale
A
Duration of P >120msec
(>3small sq)
7
Q
Inverted P waves- in inferior leads
A
=>when present in inferior leads- sugg non-sinus origion of P waves
-When P-R >120msec- origion in atria
-when P-R<120msec- origion- AVjunction(accelerated junctional)
8
Q
> 3different morphologies of P waves and Rate>100
A
MAT
best antiarrhythmic in MAT- Mg
