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ECG: Atrial Fibrillation
Rate
Variable Rate
Rhythm
Irregular Rhythm
P Wave
No P Wave
PR Interval
No PR Interval
QRS Interval
QRS < 0.12 Seconds
1 min
ECG Interpretation
Rate
Rhythm
P Waves
Upright, Rounded, Before Every QRS
PR Interval (< 0.20 seconds)
Normal QRS (< 0.12 seconds)
2 mins
12 Lead Contiguous Leads - Lateral Wall MI
Leads Elevated
Lead I
Lead aVL
Lead V5
Lead V6
Artery Affected
Circumflex
1 min
12 Lead Contiguous Leads - Anterior Wall MI
Leads Elevated
Lead V3
Lead V4
Artery Affected
Left Anterior Descending (LAD)
56 secs
12 Lead Contiguous Leads - Inferior Wall MI
Leads Elevated
Lead II
Lead III
Lead aVF
Artery Affected
Right Coronary Artery (RCA)
56 secs
12 Lead Contiguous Leads - Septal Wall MI
Elevated Leads
Lead V1
Lead V2
Artery Affected
Left Anterior Descending (LAD)
48 secs
ECG: Atrial Flutter
Rate
Variable
Rhythm
Regular or Irregular
P Wave
Saw Tooth, Multiple Before Every QRS
PR Interval
Non-measurable
QRS Interval
< 0.12 seconds
2 mins
Persistent Truncus Arteriosus
Common Arterial Trunk
Single Trunk Emerges from Both Ventricles
Symptoms
Cyanosis
Pulmonary Congestion
Heart Failure
Single S2 Sound
Diagnosis
Echocardiogram
Chest X-ray
Treatment
Early Surgical Correction
Avoids Pulmonary Hypertension
2 mins
Hydralazine
Indications
Reduce Afterload
Severe Hypertension
Safe during Pregnancy
CHF
Mechanism of Action
Increases cGMP
Vasodilates Arterioles
Side Effects
Drug-induced Lupus
Reflex Tachycardia
1 min
Hypertriglyceridemia (Type IV Familial Dyslipidemia)
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