Cla Flashcards
What do osteoclast do?
Break down bone to release calcium
Symptoms of acute hypercalcaemia
Thirst
Dehydration
Confusion
Polyuria
Symptoms of chronic hypercalcaemia
Myopathy
Osteopenia 4Fractures
Depression
Abdo pain (pancreatitis, ulders, renal stones)
Management of hypercalcaemia
Fluids
Loop diuretic (once rehydrated)
Bisphosphonats
Seroids ocasionally used
Causes of hypercalcaemia
Primary hyperparathyroidism Malignancy Drugs (Vit D, thiazides) Granulomatous disease FHH High bone turnover( Paget's)
Symptoms of hypocalcaemia
Paraesthesia Muscle cramps/tetany Muscle weakness, fatigue Broncho/laryngospasm Fits Chovstek's sign (tapping over CN VII) Trosseau sign (wrist very flexed)
Findings of hypocalcaemia on ECG
QT prolongation
Causes f hpocalcaemia
Hypoparathyroid
Vit D deficiency
Chronic renal failure
Managemnt of acute hypocalcaemia
1ml 10% IV calcium gluconate
Long term management of hypocalcaemia
Vit D & calcium supplements
Is there calcium present in the urine in FHH?
No
Pathogenesis of osteoporosis
Increase in bone resorption over formation
Using Qfracture, at which point should a patient be referred for DEXA?
If > 10%
How is a DEXA scan interpreted?
Normal = within 1 SD of mean Osteopenia = 1-2.5 SD below mean Osteoporosis = >2.5 DF below mean
Secondary endocrine causes of osteoporosis
Hyperthyroidism
Hyperparathyroidism
Cushings