Clinical and metabolic state resulting from decreased levels of free thyroid hormone or from resistance to hormone action
Classified as primary, central or peripheral based on patholo...
Lethargy, fatigue
Cold intolerance
Constipation
Dry skin
Muscle cramps, arthralgias, paresthesias
Modest weight gain (4-11 lbs [2-4.5 kg])
Menstrua...
Levothyroxine (Synthroid, Levothroid)
1.5 to 1.8 μg/kg/day (use ideal body weight) (3)[A]; titrate by 12.5 to 25 μg/day every 4 to 8 weeks until TSH in normal range.
For p...
Monitor TSH and free T4 every 4 to 8 weeks after initiating treatment or after change in dose. Once stabilized, periodic TSH level should be don...
E03.9 Hypothyroidism, unspecified
E06.3 Autoimmune thyroiditis
E89.0 Postprocedural hypothyroidism
E05.10 Thyrotxcosis w toxic sing thyroid nodule w/o thyrotxc cris...
Screening test: Order TSH levels; serum free T4 should be obtained only if TSH is abnormal and not as part of initial screening test (2)[A].
Monitor TSH and free T4 every 4 to 8 weeks ...
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