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Hypocalcaemia
In medicine, hypocalcaemia is the presence of less than a total calcium of 2.2 mmol/L (9mg/dl), or an ionized calcium of less than 1.1 mmol/L (4.5 mg/dL) in the serum.
Causes
- absent parathyroid hormone (PTH)
- hereditary hypoparathyroidism
- acquired hypoparathyroidism
- hypomagnesemia
- ineffective PTH
- chronic renal failure
- absent active vitamin D
- decreased dietary intake
- decreased sun exposure
- defective Vitamin D metabolism
- anticonvulsant therapy
- vitamin-D dependent rickets, type I
- ineffective active vitamin D
- intestinal malabsorption
- vitamin-D dependent rickets, type II
- pseudohypoparathyroidism
- deficient PTH
- severe acute hyperphosphatemia
- tumor lysis syndrome
- acute renal failure
- rhabdomyolysis (initial stage)
- osteitis fibrosa following parathyroidectomy
- severe acute hyperphosphatemia
See also
- Sometimes this condition is confused with hypokalemia.
- Calcium metabolism
- Hypercalcaemia
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details