learn.howToCalculate
learn.whatIsHeading
Corrected calcium adjusts serum calcium for albumin levels, better reflecting true ionized calcium status and clinical significance.
Fórmula
Calculate: Corrected Ca = Measured Ca + 0.8 × (4.0 - Albumin)
- Ca
- Measured Ca + 0 — Measured Ca + 0
Guia passo a passo
- 1Calculate: Corrected Ca = Measured Ca + 0.8 × (4.0 - Albumin)
- 2Or use ionized calcium directly if available
- 3Normal corrected calcium 8.5-10.2 mg/dL
Exemplos resolvidos
Entrada
Total Ca 7.8 mg/dL, albumin 2.5 g/dL
Resultado
Corrected Ca = 7.8 + 0.8(4.0-2.5) = 9 mg/dL (normal)
Not hypocalcemic
Erros comuns a evitar
- ✕Forgetting albumin correction in hypoalbuminemic patients
- ✕Treating low total calcium as pathologic without correction
Perguntas frequentes
Why adjust for albumin?
Albumin binds ~45% of serum calcium; low albumin falsely lowers total calcium without affecting ionized calcium.
When is correction unnecessary?
If ionized calcium is directly measured, no correction needed; it's the physiologically active form.
Pronto para calcular? Experimente a calculadora Corrected Calcium gratuita
Experimente você mesmo →