THYROID PHARMACOLOGY AND PHYSIOLOGY MCQS 1. Thyroid hormones exert pleiotropic effects in almost all tissues of the body . 2. Thyroid stimulating hormone (TSH) is produced by the thyrotroph cells in the posterior pituitary gland 3. TSH receptor are expressed on the thyroid para follicular cells. 4. A very small increases in thyroid hormone secretion reduce TSH secretion in a log-linear relationship. 5. T4 is the main regulator of TSH. Answers 1. TRUE-This influences brain and somatic development in infants and metabolism in adults. 2. FALSE -TSH is an anterior pituitary hormone and secretes in response to negative feedback from circulating thyroid hormones. 3. FALSE-TSH receptors are expressed on thyroid follicular cells. 4. TRUE-The reason why the TSH is the most sensitive screening test for thyroid dysfunction 5. FAKSE – T3 is the main regulator since it binds to the thyrotroph nuclear thyroid hormone receptor while T4 acts via conversion to T3 THYROID PAHYSIOLOGY MCQS 1. 70 %TO 80% ...
Posts
Showing posts with the label Study Material
MCQs
- Get link
- X
- Other Apps
TOXIC MULTI NODULAR GOITRE-MCQS 1.Thyroid gland with at least 2 autonomously functioning nodules that secretes excess thyroid hormones. 2.Symptoms include dysphagia, dyspnoea dizziness and /or neck discomfort. 3.Tc -99 scan shows a homogeneous pattern. 4. Non contrast CT scan along with spirometry is useful to evaluate when there is a suspected tracheal compression. 5. Pemberton's sign is used to evaluate venous obstruction in patients with goitre Answers 1. TRUE 2. TRUE-retrosternal goitre may cause dizziness when raising arms above the head. 3. FALSE-Heterogeneous pattern with many areas with hyperactivity and hypo-activity throughout the gland. 4. TRUE- Non contrast CT scan and inspiratory flow volume loop obtained during the spirometry manoeuvre may be helpful for functional evaluation of tracheal compromise. 5. TRUE-The sign is positive when bilateral arm elevation causes facial plethora