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Details

Disease of Calcium metabolism and metabolic bone disease
Test 1 Sem. 2
21
Medical
Graduate
01/17/2011

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Cards

Term
What are the most important risk factors associated with osteoporosis?
Definition
1) Age
2) Genetics (family hx)
3) Female
4) low body weight
5) post-menopausal
6) white/Asian race
Term
Basic pathophysiology of osteoporosis is an imbalance between what?
Definition
bone resorption and formation
Term
A t-score of what indicates osteoporosis?
Definition
<-2.5
Term
What class of drugs remain in the bone for years following treatment?
Definition
bisphosphonates
Term
What is the only med that increases bone production?
Definition
Forteo
Term
What med is an excellent choice for someone with a family hx of breast cancer and osteoporosis?
Definition
Raloxifene (evista)
Term
What labs are seen with hyperparathyroidism?
Definition
normal/elevated PTH with high calcium levels
Term
What is the most common type of hyperparathyrodisim? and what is present in 80%?
Definition
1) Primary Hyperparathyrodism
2) Solitary parathyroid adenoma
Term
What is the most common cause of Non-PTH-mediated hypercalciemia? and what is the type?
Definition
1) Malignancy
2) squamous cell carcinoma (lung)
Term
What is osteolytic hypercalcemia classically seen with?
Definition
multiple myeloma
Term
What is acute hypercalcemia often caused by?
Definition
malignancy
Term
What is the initial intervention of acute hypercalcemia?
Definition
IV saline
Term
What is the most common cause of hypocalcemia?
Definition
factitious secondary to low plasma proteins
Term
What EKG changes are consistent with changes in calcium?
Definition
hypocalcemia - prolonged QT
hypercalcemia - shortened QT
Term
What t score changes are indicative of osteopenia?
Definition
-1.0 to -2.5
Term
What are the most common sites of involvement for osteoporosis?
Definition
hip, distal forearm, and vertebrae
Term
What is the preferred method of follow-up and diagnosis of osteoporosis?
Definition
DEXA scan
Term
each standard deviation below normal represents what percentage of bone loss and what risk of fracture?
Definition
1) 10-12% of bone loss
2) 2-2.5x increased fracture risk
Term
What is the most common antiresorptive therapy for osteoprososis?
Definition
bisphosphonates, estrogen, SERM, and calcitonin
Term
What treatments appear to make the greatest difference in bone density?
Definition
1) bisphosphonates
2) estrogen
Term
What is the risk of bisphosphonate use?
Definition
esophagitis
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