Introduction TFTs are abnormal in 70% of hospitalized patients [Arch Intern Med 150: 1249, 1990] and up to 90% of ICU patients [Crit Care Med 22: 1603, 1994]. In most (but not all) cases, these lab abnormalities represent an adaptive response to non-thyroidal illness and are not a sign of thyroid disease. Evaluation of Thyroid […]