IST for 2 years: Diagnosis of IST. is a diagnosis of exclusion. Almost always, sinus tachycardia is appropriate. Therefore causes of appropriate sinus tachycardia must first be excluded: 1.Anemia,2.Pheochromocytoma 3.Hyperthyroidism, 4.Volume, 5. Depletion,6.Fever 7.Anxiety Disorder, 8.Medications, 9. Cardiomyopathy. You require a cardiologist, have a Holter, consider conduction ablation to eliminate ectopic foci
Answered 11/10/2015
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