Thyroid Disorders Flashcards
1
Q
- Seen in regions w/ low iodine
- Enlarged, mutlinodular thyroid
- May become hypothryoid
- Dx: T4 and TSH usually normal
- Tx: Idodine
A
Endemic Goiter
2
Q
Small do fine w/o tx
Most slow growing, and relatively benign
Tx: Nodule Thyroidectomyand I-131 ablation of residual tissue
levothyroxine
A
Thyroid CA
3
Q
Nodular areas which become autonomous
- Seen in pt’s with hx of euthyroid multi nodular goiter
- Dx: Low TSH, high T4; radioactive scan
- Tx: Radioactive idodine; antithyroid meds
A
Toxic Multinodular Goiter
4
Q
Decompensated hypothyroid
AMS, hypothermia, hypoventilation
A
Myxedema
5
Q
- Antibodies stimulate TSH receptors (autoimmune)
- Same findings as hyperthyroid w/ significant eye findings. Nervousness, fine finger tremors palpitations
- Dx: Low TSH, high T4; RAI scan
- Antithyroid meds, radioactive idodine, surgery
A
Grave’s Disease
5
Q
Decompensation of hyperthyroid
- Tachycardia, HTN, fever, AMS, heat failure
- Low TSH, high T4
A
Thyroid crisis/storm
7
Q
Women>men
Primary within thyroid, 2nd at pituitary
- Wight gain, weakness, cold intolerance, menorrhagia, hoarseness, dry skin, bradycardia, delayed DTRs,
- TSH high, T4 low (or normal)
- Levothyroxine
A
Hypothyroidism
8
Q
- Common in young women
- Irritability, fatigue, poor concentration, weakness, weight loss, heat intolerance, oligomenorrhea, increased appetite
- Low TSH, high T4
- Beta blockers (for sypmtoms) Antithyroid meds
A
Hyperthyroid
9
Q
- Clinically relevant >1cm
- Wide range of causes: graves, hashimoto, infix, adenoma, cyst
- Small=asymptomatic; goiter; larger present worse problems
- More common in women and elderly
- TSH, US, retronuclear scan, Fine needle aspiration
- Most just watch, Tx based on risk stratification
A
Thryoid nodules
10
Q
Preceded by viral URI
- Excess release of T4 from lysing of cells following inflammation
- Tender, enlarged thyroid
- high white count
- Self limiting
A
Subacute thyroiditis
11
Q
- Autoimmune attack of the thyroid
- Most common cause of hypothyroid in US
- Enarged, firm, finely nodular thyroid, fatigue, weight gain, dry/thinning hair, cold intolerance, bradycardia, oligomenorrhea, mood disorders
- Normal TSH
- Levothyroxine
A
Hashimoto’s Thyroiditis
