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Old July 4th, 2004, 14:47
sysadmin sysadmin is offline
Join Date: 2001
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Tc-99m Thyroid Suppression Test Effective in the Evaluation of Thyroid Nodules

This paper looked at whether or not L-thyroxine needed to be discontinued before scanning patients with Tc-99m pertechnetate in the diagnosis of an autonomous functioning thyroid nodule. The authors found that there was no significant difference in thyroid uptake in patients with AFTNs after L-thyroxine suppression. COMMENT: routine discontinuation of L-thyroxine before thyroid scanning is a knee-jerk reaction that is not always clinically useful or relevant.

Clin Endocrinol (Oxf). 2000 Apr;52(4):471-7.

Thyroid suppression test with L-thyroxine and [99mTc] pertechnetate.

Ramos CD, Zantut-Wittmann DE, Tambascia MA, Assumpcao L, Etchebehere EC, Camargo EE.

Division of Nuclear Medicine, Department of Radiology, School of Medical Sciences, Campinas State University, Campinas, Brazil.
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