AMC EXAMS AUSTRALIA ,AUSTRALIAN MEDICAL EXAMS,MCQS,CLINICALS.

De QUERVAIN’S THYROIDITIS -MCQS-2 1.During initial phase of thyrotoxicosis associated high T4:T3 ration suggests release of stored thyroid hormones. 2.ESR is markedly elevated. 3.Treatment is focused around the management of pain and inflammation of the thyroid gland. 4.Anti-thyroid medications are not indicated. 5.Steroids are considered first line therapy. ANSWERS 1. TRUE-due to release of stored thyroid hormones. 2. TRUE-due to inflammation 3. TRUE 4. TRUE-since the preformed thyroid hormones released to the circulation is responsible for symptoms. 5. FALSE-NSAIDS, and beta blockers for symptom control-steroid are reserved for resistant cases. HASHIMOTOS THYROIDITIS-MCQS 1. Recurrent postpartum thyroiditis is common in subsequent pregnancies 2. The initial hyperthyroid phase can easily be missed clinically. 3. Hypothyroid state is more commonly seen in clinical practice 4. Hypothyroidism is usually insidious in onset and may be progressing over years. 5. Is the most common cause of ...

THYROIDITIS -MCQS 1.Results in release of preformed thyroid hormone stores due to thyroid follicular cell destruction. 2. A common cause of thyrotoxicosis. 3.Rdionuclide thyroid scan shows heterogeneous uptake. 4. Can present with or without underlying thyroid disease. 5.De Quervain’s thyroiditis is a painful form of thyroiditis which usually follows a viral infection. Answers 1. TRUE-follicular cell apoptosis due to inflammation. 2. FALSE- less common but a recognized cause. 3. FALSE-near absent uptake. 4. TRUE 5. TRUE-usually after upper respiratory tract infection-there are characteristic clinical features that needs to be actively sought but diagnosis is often significantly delayed.(history of URTI,firm tender thyroid,neck/jaw /ear pain,persistent sore throat)

SUBCLINICAL HYPERTHYROIDISM-MCQs   1.Suppression of serum TSH (thyroid stimulating hormone) and normal fT4 and fT4 levels 2. The outcome could be progression to overt hyperthyroidism or revert to euthyroidism. 3. Hyperthyroidism confers an increased risk of overall mortality 4.If exposed to excess iodine may precipitate overt hyperthyroidism 5. Treatment is indicated in all individuals over 55 years of age.   Answers   1.TRUE-in older population underline multinodular goitre needs to be considered. 2.TRUE-spontaneous reversal to euthyroidism has been reported. 3.TRUE-cardiovacular mortality around 30% and increased risk of fracture. 4.TRUE-this could even be IV contrast or iodine containing supplements 5.FALSE-above 65years , patients with heart disease, osteoporosis, high cardiovascular risk level and post- menopausal women

IMPORTANT UPDATE-MCQ EXAM

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% ...