To PLEX or Not to PLEX for Amiodarone-Induced Thyrotoxicosis

Table 1

Thyroid function tests.

	Latest reference range and units	06/01/20	11/02/20	03/23/21	04/05/21	08/03/22	09/12/22
T3, free	2.00-4.40 pg/mL		3.18
T4, free, direct	0.80-1.90 ng/dL	1.57	1.76		1.69
T4, free, nondialysis	0.7-1.5 ng/dL					2.2 (H)	3.1 (H)
Thyroid peroxidase antibodies	<35 IU/mL	10
Thyroid-stimulating hormone	0.270-4.200 μIU/mL	3.910	2.230		3.77
TSH, high sensitivity	0.4-4.1 mIU/L			2.31		<0.02 (L)	<0.02 (L)

(H): data is abnormally high; (L): data is abnormally low.