mark wrote:
Quote:
a. T3 is more active than T4
b. Most T13. With regards to thyroid hormones:
4 is converted to T3 at tissue level
c. anti-thyroid drugs freely cross placenta
d. Deficiency of thyroid hormones in pregnancy causes thyrotoxicosis in the neonate.
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a. True. T3 is active T4 is converted to t3 peripherally.
b. True. T4 is deionidated in peripheral tissues to t3
c. True Carbimazole and propylthiouracil cross the pladenta
d. False. Neonatal thyrotoxicosis can occur in offspring of women with Graves disease. TSH receptor stimulating antibodies cross the placenta.
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