Parathyroid Gland and Hormone Quiz

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16 Questions

What is the primary role of Parathyroid hormone (PTH)?

Preserving calcium within normal range

Which disorder is characterized by the presence of a functioning parathyroid adenoma and phosphaturia?

Primary hyperparathyroidism

What is a common cause of secondary hyperparathyroidism?

Decreased serum calcium

In hypoparathyroidism, what is a common post-surgical cause that leads to accidental injury to the parathyroid glands?

Autoimmune parathyroid destruction

What is a common laboratory result associated with primary hyperparathyroidism?

Hypercalcemia

How does Parathyroid hormone indirectly stimulate intestinal absorption of calcium?

By stimulating conversion of inactive Vitamin D to activated Vitamin D3

What is the primary role of Parathyroid hormone (PTH)?

Preserves calcium and phosphate within normal range

What is the main cause of primary hyperparathyroidism leading to hypercalcemia?

Presence of a functioning parathyroid adenoma

Which of the following is a characteristic of secondary hyperparathyroidism?

Diffused hyperplasia of all 4 parathyroid glands

What is the primary effect of Parathyroid hormone on bone?

Increases bone resorption

What is a common laboratory result associated with tertiary hyperparathyroidism?

Calcium phosphates precipitate in soft tissues

In hypoparathyroidism, what does a patient often become dependent on for calcium supplementation?

Vitamin D injections

What is a key feature of secondary hyperparathyroidism?

Decreased serum calcium response

What happens to phosphates in cases of tertiary hyperparathyroidism?

Precipitate in soft tissues

What result would be expected in primary hyperparathyroidism when checking ionized calcium levels?

Increased levels

What is the consequence of undetected primary hyperparathyroidism?

Severe demineralization that may lead to osteitis fibrosa cystica

Test your knowledge on the parathyroid gland and hormone. Learn about the location of the parathyroid gland, its anatomical features, the secretion of parathyroid hormone, and its primary role in calcium homeostasis.

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