The adrenal hormones
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Questions and Answers

How do glucocorticoids promote normal intermediary metabolism?

  • By enhancing expression of gluconeogenesis enzymes (correct)
  • By inhibiting lipolysis
  • By decreasing hepatic glucose production
  • By reducing amino acid mobilization

What is the main role of glucocorticoids in increasing resistance to stress?

  • Raising plasma glucose levels (correct)
  • Mobilizing amino acids for energy
  • Lowering plasma glucose levels
  • Inhibiting lipolysis

How do glucocorticoids affect blood cell levels in plasma?

  • Decrease hemoglobin and erythrocytes
  • Decrease eosinophils, basophils, and lymphocytes
  • Increase platelets and polymorphonuclear leukocytes (correct)
  • Increase eosinophils and monocytes

What is the most important therapeutic property of glucocorticoids?

<p>Possessing anti-inflammatory and immunosuppressive activities (D)</p> Signup and view all the answers

Which of the following is NOT a way in which glucocorticoids alter blood cell levels in plasma?

<p>Increase lymphocytes in lymphoid tissue (D)</p> Signup and view all the answers

What happens to glucose synthesis when glucocorticoids stimulate lipolysis?

<p>It is enhanced by providing building blocks and energy (D)</p> Signup and view all the answers

What is the main cause of Cushing syndrome?

<p>Hypersecretion of glucocorticoids (B)</p> Signup and view all the answers

What is the mechanism by which adrenal hormones influence the inflammatory response?

<p>Stabilizing mast cell and basophil membranes (C)</p> Signup and view all the answers

Which hormone suppresses cortisol release in normal individuals but not in those with Cushing syndrome?

<p>Dexamethasone (A)</p> Signup and view all the answers

What is a frequent cause of iatrogenic Cushing syndrome?

<p>Chronic treatment with high doses of glucocorticoids (C)</p> Signup and view all the answers

How do high levels of glucocorticoids affect the endocrine system?

<p>Suppressing synthesis of glucocorticoids and thyroid-stimulating hormone (C)</p> Signup and view all the answers

In congenital adrenal hyperplasia, what leads to virilization in females?

<p>Overproduction of adrenal androgens (A)</p> Signup and view all the answers

What is the primary role of mineralocorticoids in the body?

<p>Regulating sodium and potassium levels (A)</p> Signup and view all the answers

Where does aldosterone act to promote sodium reabsorption?

<p>Distal tubules and collecting ducts in the kidney (C)</p> Signup and view all the answers

What is the main purpose of administering corticosteroids in congenital adrenal hyperplasia?

<p>To normalize hormone levels (B)</p> Signup and view all the answers

What are the consequences of elevated aldosterone levels?

<p>Alkalosis and hypokalemia (B)</p> Signup and view all the answers

Which symptom can corticosteroids relieve in conditions like rheumatoid arthritis?

<p>Reduced inflammation (C)</p> Signup and view all the answers

How do corticosteroids affect glomerular filtration?

<p>Decrease filtration rate (B)</p> Signup and view all the answers

Which adverse effect is the most common due to glucocorticoids' effect on bone health?

<p>Osteoporosis (C)</p> Signup and view all the answers

What is a classic symptom of excess corticosteroid replacement?

<p>Centripetal distribution of body fat (D)</p> Signup and view all the answers

Which condition may occur with long-term corticosteroid therapy affecting the eyes?

<p>Cataracts (A)</p> Signup and view all the answers

What is an adverse effect of glucocorticosteroids that may require diabetic patients to monitor their blood glucose?

<p>Hyperglycemia (D)</p> Signup and view all the answers

Which potential corticosteroid-induced effect is characterized by redistribution of body fat and a puffy face?

<p>Cushing-like syndrome (D)</p> Signup and view all the answers

In what population does glucocorticoid therapy pose a risk of decreased growth as an adverse effect?

<p>Children (B)</p> Signup and view all the answers

What can happen if corticosteroids are abruptly discontinued in a patient with suppression of the HPA axis?

<p>Acute adrenal insufficiency (A)</p> Signup and view all the answers

Which drug is used to treat Cushing syndrome by inhibiting gonadal and adrenal steroid hormone synthesis?

<p>Ketoconazole (B)</p> Signup and view all the answers

What is the primary mechanism of action of Spironolactone in treating certain conditions?

<p>Competes for the mineralocorticoid receptor (D)</p> Signup and view all the answers

Which of the following conditions is Spironolactone NOT used for?

<p>Hyperthyroidism (A)</p> Signup and view all the answers

What effect does Spironolactone have on the hair follicles leading to its use in managing hirsutism?

<p>Inhibits androgen activity (A)</p> Signup and view all the answers

Which drug inhibits both gonadal and adrenal steroid hormone synthesis and is used in patients with Cushing syndrome?

<p>Ketoconazole (B)</p> Signup and view all the answers

What serious consequences can occur if corticosteroids are abruptly discontinued in a patient with suppression of the HPA axis?

<p>Acute adrenal insufficiency (C)</p> Signup and view all the answers

Which drug competes for the mineralocorticoid receptor and inhibits sodium reabsorption in the kidney?

<p>Spironolactone (D)</p> Signup and view all the answers

Inhibitors of which of the following are therapeutically useful in the treatment of patients with Cushing syndrome?

<p>Adrenal steroid hormone synthesis (C)</p> Signup and view all the answers

Which drug is effective for the management of hirsutism in women due to its antiandrogen activity on the hair follicle?

<p>Spironolactone (A)</p> Signup and view all the answers

What could happen if a patient undergoes abrupt removal of corticosteroids without tapering according to individual tolerance?

<p>Fatal acute adrenal insufficiency (A)</p> Signup and view all the answers

Which condition can Spironolactone effectively treat when used with other standard therapies for heart failure with reduced ejection fraction?

<p>Hyperkalemia (C)</p> Signup and view all the answers

What is the primary therapeutic property of Ketoconazole that makes it useful in patients with Cushing syndrome?

<p>Inhibits adrenal steroid hormone synthesis (A)</p> Signup and view all the answers

Which adverse effect can occur if a patient with suppression of the HPA axis is not carefully monitored during corticosteroid dose tapering?

<p>Adrenal adenoma growth (A)</p> Signup and view all the answers

What role does Spironolactone's antiandrogen activity play in managing hirsutism in women?

<p>Reducing testosterone levels in circulation (C)</p> Signup and view all the answers

How does Ketoconazole impact gonadal and adrenal steroid hormone synthesis in patients with Cushing syndrome?

<p>Strongly inhibits all gonadal and adrenal steroid hormone synthesis (D)</p> Signup and view all the answers

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