What is the key difference between primary and secondary endocrine disorders?
Primary disorders affect hormone receptors, while secondary disorders affect hormone production
Primary disorders originate in the target organ, while secondary disorders originate in the pituitary gland or hypothalamus
Primary disorders involve the hypothalamus, while secondary disorders involve the target organ
Primary disorders are caused by external factors, while secondary disorders are caused by genetic mutations
The Correct Answer is B
A. Primary disorders affect hormone receptors, while secondary disorders affect hormone production: While receptor sensitivity may play a role in some conditions, the main distinction between primary and secondary endocrine disorders is based on the location of dysfunction, not receptor or hormone function alone.
B. Primary disorders originate in the target organ, while secondary disorders originate in the pituitary gland or hypothalamus: In primary disorders, the problem lies in the endocrine gland itself (e.g., the thyroid gland in primary hypothyroidism), while secondary disorders result from dysfunction in regulatory centers like the pituitary or hypothalamus.
C. Primary disorders involve the hypothalamus, while secondary disorders involve the target organ: This reverses the correct relationship. Secondary disorders typically involve the hypothalamus or pituitary, not primary disorders.
D. Primary disorders are caused by external factors, while secondary disorders are caused by genetic mutations: While both external and genetic factors can contribute to endocrine disorders, this distinction does not define the difference between primary and secondary types. The classification is based on the anatomical source of dysfunction.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D","E"]
Explanation
A. Secretions include amylase: Amylase is a digestive enzyme secreted by the pancreas that helps break down carbohydrates. Elevated serum amylase is a common diagnostic marker in acute pancreatitis.
B. Contains proteolytic enzymes that break down dietary proteins: The pancreas produces proteolytic enzymes like trypsin and chymotrypsin, which digest proteins in the small intestine under normal conditions.
C. Pancreatic enzymes auto-digest pancreatic cells and tissue: In acute pancreatitis, premature activation of these enzymes inside the pancreas leads to self-digestion and inflammation of pancreatic tissue.
D. A reversible inflammatory process: Acute pancreatitis is typically reversible with prompt treatment, unlike chronic pancreatitis which involves permanent structural damage and functional loss.
E. Cardinal manifestation is abdominal pain – could be midabdominal, could be epigastric: Severe abdominal pain is the hallmark symptom, commonly located in the epigastric or midabdominal region and may radiate to the back.
Correct Answer is A
Explanation
A. Calcium carbonate: This is commonly used as a phosphate binder in patients with renal failure and hyperphosphatemia. It works by binding dietary phosphate in the gut, reducing its absorption, and thereby helping to lower serum phosphate levels.
B. Sensipar (Cinacalcet): Cinacalcet is used to treat secondary hyperparathyroidism in chronic kidney disease. It works by increasing the sensitivity of calcium-sensing receptors in the parathyroid gland to lower PTH levels.
C. Levothyroxine: This is a synthetic thyroid hormone used in the treatment of hypothyroidism. It does not have any role in managing phosphate levels in renal failure patients.
D. Vitamin D (Calcitriol): Calcitriol helps manage hypocalcemia and suppresses parathyroid hormone secretion in CKD. However, it may increase phosphate absorption from the gut, potentially worsening hyperphosphatemia if not carefully monitored.
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