Bone Disorders: Lab Values

Question 1

What are the calcium, phosphate, ALP, and PTH levels in osteoporosis?

Answer 1

Calcium normal; phosphate normal; ALP normal; PTH normal.

Question 2

What are the characteristic lab abnormalities in osteomalacia?

Answer 2

Calcium decreased; phosphate decreased; ALP increased; PTH increased.

Question 3

What lab pattern is seen in primary hyperparathyroidism (leading to osteitis fibrosa cystica)?

Answer 3

Calcium increased; phosphate decreased; ALP increased; PTH increased.

Question 4

What are the calcium, phosphate, ALP, and PTH levels in chronic kidney disease (secondary hyperparathyroidism)?

Answer 4

Calcium decreased; phosphate increased; ALP increased; PTH increased.

Question 5

What lab values are typical in Paget’s disease of bone?

Answer 5

Calcium normal; phosphate normal; ALP increased; PTH normal.

Question 6

What are the calcium, phosphate, ALP, and PTH levels in osteopetrosis?

Answer 6

Calcium normal; phosphate normal; ALP normal; PTH normal.