Calcium Correction in Hypoalbuminemia (SI units)

 

Input
 

Serum Ca		mcmol/L mmol/L
Normal Albumin	40 g/L
	44 g/L
Patient Albumin		g/L

 

Result
 

Ca		mcmol/L mmol/L
Decimal Precision   0 1 2 3

 

Notes

• The Normal Albumin parameter is set to 40 gm/L.
• Some practitioners prefer 44 gm/L as normal (see article 1 below.) Simply change the Normal Albumin value above and the page will recalculate instantly.

 
Equations used
 

Ca = SerumCa + 0.02 * (NormalAlbumin - PatientAlbumin)

 

 

References

1. Figge J, Jabor A, Kazda A, Fencl V. Anion gap and hypoalbuminemia. Crit Care Med. 1998 Nov;26(11):1807-10. PubMed ID: 9824071
2. Payne RB, Little AJ, Williams RB, Milner JR. Interpretation of serum calcium in patients with abnormal serum proteins. Br Med J. 1973 Dec 15;4(5893):643-6. PubMed ID: 4758544