[MCQ] Disorders of the Thyroid Gland- Part 5

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Disorders of the Thyroid Gland- Part 1| Disorders of the Thyroid Gland- Part2| Disorders of the Thyroid Gland- Part 3| Disorders of the Thyroid Gland- Part 4| Disorders of the Thyroid Gland- Part 5

1. Titration of doses of anti-thyroid drugs is best based on ?
A. Unbound T3 levels
B. Unbound T4 levels
C. TSH
D. Any of the above

2 Agranulocytosis due to anti-thyroid drugs is ?
A. Idiosyncratic
B. Dose related
C. Duration related
D. All of the above

3  In atrial fibrillation due to thyrotoxicosis, dose of digoxin is ?
A. More
B. Less
C. Same

D. Any of the above

4 To avoid thyrotoxic crisis after radioiodine therapy, pretreatment
with antithyroid drugs should be done for at least ?
A. 7 days
B. 14 days
C. 21 days
D. 1 month

5 Antithyroid drugs must be stopped how many days before
administration of radioiodine ?
A. At least 1 day
B. At least 2 days
C. At least 3 days
D. At least 7 days

6 Radioactive 131 I dose used for thyrotoxicosis is ?
A. 5 mCi – 15 mCi
B. 15 mCi – 25 mCi
C. 25 mCi – 35 mCi
D. 35 mCi – 45 mCi

7 Hyperthyroidism can persist for how long before radioiodine
takes full effect ?
A. 1 to 2 months
B. 2 to 3 months
C. 3 to 4 months
D. 4 to 5 months

8 Usually, second dose of radioiodine can be given after what
duration in persistent hyperthyroidism ?
A. 1 month
B. 3 months
C. 6 months
D. 9 months

9 Women can conceive safely how many months after radioiodine
treatment ?
A. 1 month
B. 3 months

C. 6 months
D. 9 months

10 Which anti-thyroid drug is preferred in pregnancy with Graves’
disease ?
A. Propylthiouracil
B. Carbimazole
C. Methimazole
D. Any of the above

11 Hyperthyroidism is most difficult to control in which trimester of
pregnancy ?
A. First
B. Second
C. Third
D. All of the above
12 Which of the following is not a cause of chronic thyroiditis ?
A. Riedel’s thyroiditis
B. Hashimoto’s thyroiditis
C. Radiation thyroiditis after 131I treatment
D. Parasitic thyroiditis (Echinococcosis)
13 Which of the following can cause acute, subacute or chronic
thyroiditis ?
A. 131I treatment
B. Amiodarone
C. Mycobacterial infection
D. Riedel’s thyroiditis
14 de Quervain’s thyroiditis is a type of ?
A. Acute thyroiditis
B. Subacute thyroiditis
C. Chronic thyroiditis
D. Any of the above

15 Which of the following is false about subacute thyroiditis ?
A. High ESR
B. Low radioiodine uptake
C. Raised serum IL-6 levels
D. Thyroid antibodies present

16 Postpartum thyroiditis occurs how many months after
pregnancy ?
A. 1 to 3 months
B. 3 to 6 months
C. 6 to 9 months
D. Any of the above

17 Which of the following is false about silent thyroiditis ?
A. High ESR
B. Low radioiodine uptake
C. No thyroid tenderness
D. Presence of TPO antibodies

18 Which of the following can cause thyroiditis ?
A. IFN-
B. IL-2
C. Amiodarone
D. All of the above

19 Which of the following is false about Riedel’s thyroiditis ?
A. Painless goiter
B. Dense fibrosis of thyroid
C. Thyroid dysfunction common
D. Tamoxifen therapy beneficial

20 Riedel’s thyroiditis is associated with fibrosis of ?
A. Retroperitoneum
B. Mediastinum
C. Lung
D. All of the above

21 Which of the following is false about sick euthyroid syndrome ?
A. Decreased total & unbound T3 levels
B. Normal T4 levels
C. Normal TSH levels
D. None of the above

22 Which of the following is increased in sick euthyroid
syndrome ?
A. Total T3 levels
B. Unbound T3 levels
C. Reverse T3 levels
D. TSH levels

23 Amiodarone contains which of the following elements ?
A. Zinc
B. Iodine
C. Calcium
D. Iron

24 During pregnancy, thyroid hormone requirements are ?
A. Increased
B. Decreased
C. Same
D. Any of the above