#june2020mccqe1
A 28-year-old woman presents because of lethargy, dizzy spells and occasional syncope. During a dizzy spell the heart rate is 32 beats/min and the blood pressure is 85/60 mmHg. Which of the following is the most likely diagnosis?
(A) Addison disease
(B) Insulinoma
(C) Structural disease of the cardiac conducting system ('sick sinus syndrome')
(D) Sinus tachycardia with 4:1 atrioventricular block
(E) Iron deficiency
A 28-year-old woman presents because of lethargy, dizzy spells and occasional syncope. During a dizzy spell the heart rate is 32 beats/min and the blood pressure is 85/60 mmHg. Which of the following is the most likely diagnosis?
(A) Addison disease
(B) Insulinoma
(C) Structural disease of the cardiac conducting system ('sick sinus syndrome')
(D) Sinus tachycardia with 4:1 atrioventricular block
(E) Iron deficiency
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