Approximate number of SD episodes in US each year?
A. 450000
B. 750000
C. 1000000
D. 1500000 - ✅✅ A
Neuromuscular disease with any degree of fasicul block is considered class IIB
indic for pacing. This is following example of?
A. Erbs dystrophy
B. Lymes disease
C. Chagas disease
D. WPW syndrome - ✅✅ A
What meds make you more prone to long QT or Torsades de pointes?
A. Class Ia, Ib, diuretics
B. Class I III, IV, and hormonal replacement therapy
C. Class II, III, IV and alpha gonist
D. Class IC, III, erythromycin, azithromycin, and tricyclic antidepressants - ✅✅
D
Idiopathic dilated cardiom pt was implanted with ICD due to aborted sudden death.
Pt on amio to decrease frequency of VT episodes. Result of amio therapy was
thyrotoxicosis which manifest itself by? - ✅✅ Polymorphic VT
ARVD is different from Brugada syndrome by presenting with:
Poly VT or VF
RBBB
Mono VT
SCD - ✅✅ monomorphic VT in ARVD, Brugada has VT/VF
Which has not been linked as a trigger mechanism for torsades de pointes?
Licorice
Lbutilide
Amiodarone
Adenosine - ✅✅ adenosine
, Which of the following limited sense diagnostic tools has not been shown to be a +
predictor for increased risk of SCD?
Signal alternans
T-wave alternans
Heart rate variability
P-wave dispersion - ✅✅ P-wave dispersion
What will significantly lower myocardial stim thresholds?
Mineralocorticoids
Lidocaine
Verapamil
Dexamethasone sodium phosphate - ✅✅ dexamethasone sodium phosphate
What may elevate myocardia stim thresholds?
Acidosis, exercise, atropine
Eating, hyperoxia, insulin
Acidosis, alkalosis, hypoxia - ✅✅ acidosis, alkalosis, hypoxia
AV Block and VT/VF is a result of which disease? - ✅✅ Chagas disease
75 year old with AF is being treated with Warfarin to help prevent stroke. Which
of the following INR range is most appropriate?
1-2
2-3
3-4 - ✅✅ 2-3
80 year old male with AF with uncontrolled VR for 2 years. Mild-moderate
symptoms with rapid rates. Based on AFFIRM, what would you recommend to
treat?
-AV nodal ablation with ppm
-Rhythm control with cardioversion
-Rate control and anticoagulation therapy
-Atrial ICD or MAZE-COX III procedure - ✅✅ rate control and antic
Which drug carry the highest risk of torsades?
A. Quinidine 1a, procainamide 1a, disopyrimide
B. Lido 1b, mexiletine 1b, phenytoin
C. Flecainide 1c, metoprolol, atenolol - ✅✅ A