Severe Hyperthyroidism Complicated by Agranulocytosis Treated with Therapeutic Plasma Exchange: Case Report and Review of the Literature

Table 1

Laboratory assessment on admission.

TSH (0.27–4.2 mcIu/ml)	<0.01
Free t4 (0.9–1.7 ng/dl)	>7.77
Free t3 (0.8–2.0 ng/ml)	>6.51
WBC (4000–11,000 cells/cu mm)	2.1
Absolute neutrophil count	0.4
TRab (0–1.75 IU/L)	26
TSI (0–1.3)	5.5