ECG & PHARMACOLOGY
NORMAL SINUS RHYTHM
P WAVE: Normal
P-R INTERVAL: Normal
QRS COMPLEX: Normal
RHYTHM: Regular
RATE: 60bpm - 100bpm
BRADYCARDIA
SINUS BRADYCARDIA
RATE: >100bpm
RATE: <60bpm
ATRIAL FIBRILLATION
P WAVE: Absent, Fibrillatory P WAVE: Flutter Waves (Saw Tooth)
P-R INTERVAL: N/A P-R INTERVAL: N/A
QRS COMPLEX: Normal QRS COMPLEX: Normal
RHYTHM: Irregular RHYTHM: Regular/Irregular
RATE: Slow-rapid RATE: Rapid (Atrial/P-waves)
C 1° AV BLOCK 2° AV BLOCK - TYPE II (MOBITZ 2)
O
N
S
I
S
T
E
N
T
P P WAVE: Present (≥2P:1QRS)
R
P WAVE: Present (1P:1QRS)
__ P-R INTERVAL: ≥ 0.24 (consistent with each cycles) P-R INTERVAL: ≥ 0.24 (consistent with each cycles)
R
QRS COMPLEX: Usually normal QRS COMPLEX: Usually normal
A RHYTHM: Regular RHYTHM: Regular/Irregular
T RATE: Variable (slow-fast)
I
RATE: Variable (slow-fast)
O
I 2° AV BLOCK - TYPE I (MOBITZ 1 / WENCKEBACH) 3° AV BLOCK (COMPLETE) SUPRAVENTRICULAR TACHYCARDIA (
N
C
O
N
NORMAL SINUS RHYTHM
P WAVE: Normal
P-R INTERVAL: Normal
QRS COMPLEX: Normal
RHYTHM: Regular
RATE: 60bpm - 100bpm
BRADYCARDIA
SINUS BRADYCARDIA
RATE: >100bpm
RATE: <60bpm
ATRIAL FIBRILLATION
P WAVE: Absent, Fibrillatory P WAVE: Flutter Waves (Saw Tooth)
P-R INTERVAL: N/A P-R INTERVAL: N/A
QRS COMPLEX: Normal QRS COMPLEX: Normal
RHYTHM: Irregular RHYTHM: Regular/Irregular
RATE: Slow-rapid RATE: Rapid (Atrial/P-waves)
C 1° AV BLOCK 2° AV BLOCK - TYPE II (MOBITZ 2)
O
N
S
I
S
T
E
N
T
P P WAVE: Present (≥2P:1QRS)
R
P WAVE: Present (1P:1QRS)
__ P-R INTERVAL: ≥ 0.24 (consistent with each cycles) P-R INTERVAL: ≥ 0.24 (consistent with each cycles)
R
QRS COMPLEX: Usually normal QRS COMPLEX: Usually normal
A RHYTHM: Regular RHYTHM: Regular/Irregular
T RATE: Variable (slow-fast)
I
RATE: Variable (slow-fast)
O
I 2° AV BLOCK - TYPE I (MOBITZ 1 / WENCKEBACH) 3° AV BLOCK (COMPLETE) SUPRAVENTRICULAR TACHYCARDIA (
N
C
O
N