PHY-C Disorders of the Pituitary Axis and Thyroid Disease

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Questions and Answers

What does the acronym DI stand for in the context of pituitary disorders?

  • Dilated Ingestion
  • Diabetes Insipidus (correct)
  • Diabetes Indicator
  • Destructive Insulin

Which of the following is a common etiology for Syndrome of Inappropriate Antidiuretic Hormone (SIADH)?

  • Secretion of ectopic ADH by malignant neoplasms (correct)
  • Excessive secretion of cortisol
  • Decreased production of growth hormone
  • Increased secretion of insulin

What is the primary consequence of excessive ADH secretion in Syndrome of Inappropriate Antidiuretic Hormone (SIADH)?

  • Hyponatremia (correct)
  • Hyperkalemia
  • Dehydration
  • Hypotension

Which clinical scenario is commonly associated with Syndrome of Inappropriate Antidiuretic Hormone (SIADH)?

<p>Decreased serum sodium levels and fluid overload (A)</p>
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What is the peak incidence age for pituitary adenomas?

<p>35 to 60 years (C)</p>
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What is the most common genetic abnormality associated with pituitary adenomas?

<p>GNAS gene mutation (A)</p>
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What are the clinical manifestations of macroadenomas?

<p>Visual disturbances and increased intracranial pressure (D)</p>
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What is the characteristic symptom of diabetes insipidus (DI)?

<p>Tasteless large volume of urine (A)</p>
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