Heart

Question 1

Causes of acquired long QT syndrome
Medication ?

Answer 1

Diuretics (due to electrolyte imbalances)
Anti emetics ( eg, ondansetron)
Antipsychotics (eg, haloperidol, quetiapine, risperidone)
T ricyclic antidepressa nts
Selective serotonin reuptake inhibitors (eg, citalopram)
Antiarrhythmics ( eg, amiodarone, sotalol, flecainide)
Antianginal drugs ( eg, ranolazine)
Anti-infective drugs (eg, macrolides, fluoroquinolones, antifungals)

Question 2

Metabolic disorders that may cause Torsades De point

Answer 2

Electrolyte imbalances (⬇️potassium , ⬇️magnesium, ⬇️calcium)
Starvation
Hypothyroidism

Question 3

Bradyarrhythmias can case

Answer 3

Sinus node dysfu nction
Atrioventricular block (2nd or 3rd degree)

Question 4

Other causes of Tdp

Answer 4

Hypothermia
Myocardial ischemia/infarction
lntracranial disease
HIV infection