Hashimoto's Thyroiditis
- Hypothyroidism with Bouts of Hyperthyroidism
- Enlarged, Nontender Thyroid
- Autoimmune
- Anti-Thyroid Peroxidase (TPO)
- Anti-Thyroglobulin
- Hurthle Cells
- Lymphoid Follicles
- HLA-DR5 and HLA-DR3
- Increased Risk Of Non-Hodgkin Lymphoma
Subacute Thyroiditis Pathophysiology
- Self-Limiting
- Triphasic Response
- Thyrotoxic Phase
- Damaged Follicular Cells Release Pre-formed Colloid
- 2-8 Weeks
- Hypothyroid Phase
- Decreased Thyroid Hormone Synthesis
- 2-8 Weeks
- Euthyroid Phase
- Thyroid Gland Recovery
Subacute Granulomatous Thyroiditis (de Quervain)
- Viral Upper Respiratory Infection
- Tender Thyroid
- Hyperthyroidism and Hypothyroidism
- Thyroid Function Tests
- Elevated ESR
- Decreased Radioactive Iodine Uptake (RAIU)
- Multinucleated Giant Cells
- Beta Blockers
- NSAIDs
- Avoid Antithyroid Drugs
Subacute Lymphocytic Thyroiditis
- Drugs
- Autoimmune Disorders
- Postpartum Thyroiditis
- Hyperthyroidism and Hypothyroidism
- Painless Thyroid
- Thyroid Function Tests
- Elevated ESR
- Decreased Radioactive Iodine Uptake (RAIU)
- Lymphocytic Infiltrate
- Beta Blockers
- Levothyroxine
- Avoid Antithyroid Drugs
Hypothyroidism Assessment
- Weight Gain - Edema
- Lethargy
- Cold Intolerance
- Bradycardia
- Hypertension
- Brittle Nails and Dry Skin
- Constipation
- Goiter
- Prolonged Menses
- Slowed Thinking
- Decreased Free T4
- Increased TSH
Amiodarone
- Class III Antiarrhythmic (K+ Channel Blocker)
- Decreases SA and AV Node Conduction
- Inhibits Cytochrome P450
- Supraventricular Tachycardia with Heart Failure
- Ventricular Tachycardia
- Hepatotoxicity
- Pulmonary Fibrosis
- Bradycardia
- Heart Block
- Thyroid Disorders
- Blue/Gray Skin Deposits
- Corneal Deposits
Lithium
- Bipolar Disorder
- Mood Stabilizer
- Unknown Mechanism
- Nephrogenic Diabetes Insipidus
- Hypothyroidism
- Movement (Tremor)
- Heart Block
- Pregnancy (Ebstein's Anomaly)