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Old 02-13-2012
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Default heart palpitations

A 27-year-old woman arrives via emergency medical services to a local emergency department. She called a squad because of heart palpitations. She complains that over the last several weeks she has been having episodes of a racing heartbeat accompanied by palpitations, history is otherwise normal and she neither drinks alcohol nor uses tobacco. On initial examination she has a heart rate of 170 beats/min. Her blood pressure is normal and she is alert and oriented appropriately. An electrocardiogram shows atrial fibrillation. What test would help most to diagnose her underlying condition?

A. Cardiac catheterization
B. Dobutamine Stress Test
C. Serum sodium
D. Thyroid-stimulating hormone (TSH)
E. Treadmill Stress Test
F. Urine drug screen
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Old 02-13-2012
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My guess is TSH
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Old 02-13-2012
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D. Thyroid-stimulating hormone (TSH)
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Old 02-13-2012
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I think we all agree its D, so it'd be best to explain it.

Whats important here

1) Age
2) No chronic ailment
3) Alert and oriented
4) no use of Alcohol and tobacco
5) A-fib

Age: young, with no risk factors or chronic ailments.
Alert and oriented: so rules out substance abuse probability
Common causes of A-fib: PIRATES
Pulmonary, Inflammatory, Rheumatic Heart Dx, Atherosclerosis, Thyroid, Endocarditis and Sick Sinus Syndrome.

Thyroid is only thing that fits here.
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The above post was thanked by:
Ace3 (02-13-2012), drgabroomunda (02-15-2012), gargabhi2 (02-13-2012), Master shifu (02-13-2012), pass7 (02-13-2012), qurat21 (02-13-2012)


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