Hx
Gradual vs acute onset/offset
Context
Exertion
Caffeine
Anxiety
Associated symptoms
Light-headedness
Chest pain
Dyspnea
Hyperthyroid symptoms
History of bleeding or anemia
History of heart disease
PE
Vital signs
Endocrine/thyroid exam, including
Exophthalmos
Lid retraction
Lid lag
Thyroid gland size
Bruit
Tremor
CV exam
Ddx
Hyperthyroidism
Hypoglycemia
Cardiac arrhythmia
Panic attacks
Hyperventilation episodes
Pheochromocytoma
Angina
Carcinoid syndrome
Workup
Glucose
CBC, electrolytes
TSH
BUN/Cr
EKG
Holter monitor