Parathyroid Flashcards Preview

Clin Lab > Parathyroid > Flashcards

Flashcards in Parathyroid Deck (15):
1

What does parathyroid regulate?

-Calcium
-Minerals

2

What effect does calcium have on the body?

-Bone
-Muscle function

3

Where are the parathyroid glands located?

-Posterior surface of the thyroid

4

Is parathyroid hormone protein bound?

No- travels freely in the plasma

5

How is parathyroid hormone controlled?

-By calcium concentration in the extracellular fluid compartment

6

When calcium is low, PTH...

is secreted

7

When calcium is high, PTH...

is not secreted

8

What usually causes hyperparathyroidism?

-Tumor (benign or malignant)

9

What is the result of hyperparathyroidism?

Hypercalcemia

10

What can hypercalcemia do?

- Produce muscular and neurological effects
-Increase kidney stones

11

Describe labs for hyperparathyroidism

-Elevated PTH and calcium

12

What causes hypoparathyroidism?

-Inadvertent removal of the parathyroid glands during neck surgery

13

What is the result of decreased hypoparathyroidism

-Decreased PTH secretion
-Hypocalcemia

14

What can hyperparathyroidism cause?

-Bone disease
-Weak bones by osteoporosis
-Increased fracture risk
-Nephrolithiasis (kidney stones)
-Constipation, gallstones, peptic ulcers
-Depression, lethargy, seizures
-Weakness and fatigue

15

What can hypoparathyroidism cause?

-Tetany
-Neuromuscular irritability
-muscle spasm
-numbness
-tingling
-mental status change
-Ocular disease
-Dental abnormalities (defective enamel and root formation)