Ventricular Rhythm

Question 1

Ventricular Tachycardia: Features

Answer 1

Rate: >100
Rhythm: Regular
P waves: Cannot be found (hidden with QRS complex)
P-R interval: Cannot determine
QRS complexes: Look the same in shape and size; wide and bizarre

Question 2

Ventricular Tachycardia: causes

Answer 2

• Myocardial Ischemia
• MI
• Aneurysm
• Coronary Artery Disease
• Mitral Valve Prolapse
• HF
• Cardiomyopathy
• Ventricular Catheters
• hypokalemia
• hypercalcemia
• hypomagnesium
• PE
• Digoxin
• procainamide
• epinephrine or quinidine toxicity
• anxiety

Question 3

Ventricular Fibrillation: Features

Answer 3

Rate: >100
Rhythm: Irregular, chaotic and rapid
P waves: cannot be found
P-R interval: cannot determine
QRS complexes: wide and irregular (the ventricle is just "quivering")

Question 4

Ventricular Fibrillation: Causes

Answer 4

Myocardial ischemia, MI, untreated ventricular tachycardia, R- on - T phenomenon, hypokalemia, hyperkalemia, hypercalcemia, hypoxemia, alkalosis, electric shock, hypothermia, digoxin, epinephrine or quinidine toxicity