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== Do's ==
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'''Thyroglobulin level monitoring'''
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*Order serum [[thyroglobulin]] periodically during follow-up of patients with differentiated [[thyroid cancer]] who have undergone less than total [[thyroidectomy]]
|[[image:LowKECG.png|thumb|700px|center|An ECG in a person with a potassium level of 1.1 showing the classical ECG changes of ST segment depression, inverted T waves, large U waves, and a slightly prolonged PR interval. By James Heilman, MD - Own work, CC BY-SA 3.0]]
*Order serum [[thyroglobulin]] periodically during follow-up of patients with differentiated [[thyroid cancer]] who have had a total [[thyroidectomy]] but not [[Iodine-131|radioactive iodine]] ablation
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'''Cervical ultrasound'''
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*Perform [[neck]] [[ultrasound]] to evaluate [[thyroid]] 6–12 months following surgery
'''18FDG-PET scanning'''
*Consider 18FDG-PET scanning in high-risk differentiated [[thyroid cancer]] patients with elevated serum [[thyroglobulin]] (generally >10 ng/mL) and negative [[Iodine-131|radioactive iodine]] imaging
'''CT scans'''
*Order [[chest]] [[Computed tomography|CT scan]] with or without intravenous [[Contrast medium|contrast]] in high-risk differentiated [[thyroid cancer]] patients with elevated serum [[thyroglobulin]] (generally >10 ng/mL) or rising [[thyroglobulin]] [[antibodies]] with or without negative [[Iodine-131|radioactive iodine]] imaging
'''TSH range'''
*Maintain serum [[Thyroid-stimulating hormone|TSH]] below 0.1 mU/L in patients with a structural incomplete response to therapy, indefinitely in the absence of specific contraindications
*Maintain serum [[Thyroid-stimulating hormone|TSH]] between 0.5-2 mU/L in patients with an excellent or indeterminate response to therapy, especially those at low risk for recurrence
'''Surgery for nodal disease'''
*Perform surgery in patients with clinically apparent, macroscopic nodal disease
*Perform therapeutic compartmental central and/or lateral [[neck dissection]] in a previously operated [[Compartment (anatomy)|compartment]], in patients with [[biopsy]]-proven persistent or recurrent disease for central [[neck]] nodes ≥8 mm and lateral [[neck]] nodes ≥10 mm
*Perform compartmental surgery
*Perform combination of surgery and [[Iodine-131|radioactive iodine]] and/or [[External beam radiotherapy|external beam radiation therapy]] (EBRT) in patients with aerodigestive invasive disease
*Order [[complete blood count]] and assessment of renal function before administration of [[Iodine-131|radioactive iodine]]
*Discuss preventive strategies for [[dental caries]] with patients with [[xerostomia]]
'''Radioactive iodine therapy'''
[[image:LowKECG.png|thumb|700px|right|An ECG in a person with a potassium level of 1.1 showing the classical ECG changes of ST segment depression, inverted T waves, large U waves, and a slightly prolonged PR interval. By James Heilman, MD - Own work, CC BY-SA 3.0]]
*Order [[pregnancy test]] before [[Iodine-131|radioactive iodine]] administration
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*Administer [[Iodine-131|radioactive iodine]] therapy in patients with iodine-avid [[bone metastases]]
*Administer [[Iodine-131|radioactive iodine]] therapy in patients with [[Lung|pulmonary]] micrometastases and every 6-12 months
An ECG in a person with a potassium level of 1.1 showing the classical ECG changes of ST segment depression, inverted T waves, large U waves, and a slightly prolonged PR interval. By James Heilman, MD - Own work, CC BY-SA 3.0
An ECG in a person with a potassium level of 1.1 showing the classical ECG changes of ST segment depression, inverted T waves, large U waves, and a slightly prolonged PR interval. By James Heilman, MD - Own work, CC BY-SA 3.0
