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calcium in serum corrected for albumin
Reference interval:
- Male & Female: 8.1 - 10.9 mg/dL (same as for serum calcium)
Clinical significance:
- in the circulation Ca+2 is
a) bound to protein (45%)
b) in the free ionized form (45%)
c) complexed to anions (10%)
- albumin is the major serum protein binding Ca+2
- reference intervals for serum Ca+2 assume a normal serum albumin
- a 'corrected' Ca+2 (for diminished albumin) may be estimated by the equation:
Corrected Ca+2 = 0.8 x (4 - [serum albumin (g/dL)]) + serum Ca+2
Principle:
- see calcium in serum
Specimen:
- see calcium in serum
Related
albumin in serum/plasma
Ca+2
calcium (Ca+2) in serum/plasma
calcium phosphate product (Ca-P product)
hypercalcemia
hypoalbuminemia
hypocalcemia
ionized Ca+2 in serum/plasma/blood
General
calcium, corrected in serum