Thyroid Function Tests and Related Topics MCQs
- One of the following is a cause of elevated total and free T4:
- A. Pregnancy
- B. Viral hepatitis
- C. Grave’s diseases ✅
- D. Heroin addiction
- E. Oestrogen therapy
- One of the following is a cause of elevated total and free T3:
- A. Pregnancy
- B. Viral hepatitis
- C. Pituitary adenoma ✅
- D. Heroin addiction
- E. Oestrogen therapy
- One of the following is a cause of low free T4:
- A. Androgen therapy
- B. Liver cirrhosis
- C. Mal-nutrition
- D. Nephrotic syndrome
- E. Hashimoto thyroiditis ✅
- In primary hyperthyroidism, which of the following statements is true:
- A. All patients have decreased total and free T4 and T3 level
- B. T3 uptake is decreased
- C. FTI is decreased
- D. All patients have increased TRH✅
- E. There is a blunted response to TRH stimulation
- The first trimester of pregnancy is accompanied by which changes in thyroid function tests:
- A. Decreased TBG
- B. Decreased total T4 and T3
- C. Decreased or undetectable TSH
- D. Increased TSH✅
- E. Positive antimicrosomal antibodies
- Which is a cause of depressed TSH in an euthyroid patient:
- A. Subclinical hyperthyroidism ✅
- B. Subclinical hypothyroidism
- C. Secondary hypothyrodism
- D. Grave’s disease
- E. Hashimoto’s thyroiditis
- Which of the following statements is true concerning TSH:
- A. It is increased in primary hyperthyroidism
- B. It is increased in secondary hyperthyroidism
- C. It is decreased in primary hypothyroidism
- D. It is increased in secondary hypothyroidism
- E. It is decreased in severe cases of non thyroid illness ✅
- Which of the following is true in primary hypothyroidism:
- A. FT3 is the most sensitive indicator of thyroid function
- B. TSH increase may precede the decrease in the thyroid hormone ✅
- C. Reverse T3 is increased
- D. Positive thyroid stimulating immunoglobulins are diagnostic of the causative disease
- E. With treatment, TSH returns to normal prior to T4
- TSH is NOT a reliable indicator of thyroid function in case of:
- A. Primary hypothyroidism
- B. Primary hyperthyroidism
- C. First 6 months of treatment of primary hyperthyroidism ✅
- D. Third trimester of pregnancy
- E. TBG excess
- In the acute phase of non-thyroid illness, which statement is true:
- A. Total T3 is increased
- B. Free T3 is increased
- C. Reverse T3 is increased ✅
- D. TSH is increased
- E. Thyroid replacement therapy is indicated
