Calcium in patients on hemodialysis.
Analyzing 415 measurements from 33 patients on chronic maintenance hemodialysis we confirm that 50% of total calcium in the range 1.59 to 3.33 mmol/l gives a valuable approximation to ionized calcium in the range 0.79 to 1.62 mmol/l. However, a small but significant effect of albumin and phosphate on ionized calcium can also be demonstrated. Conventional albumin correction of total calcium using the formula: total calcium + (43 g/l-Albumin g/l).0.017 mmol/g is of poor value in these patients on maintenance hemodialysis.
Ring
T
T
Medical Department C, Aalborg Hospital, Denmark.
Halkier
P
P
Hansen
H H
HH
Sanden
A K
AK
Nielsen
C
C
D002118:Calcium / Q000097:blood*; D006801:Humans; D006934:Hypercalcemia / Q000175:diagnosis; D006996:Hypocalcemia / Q000175:diagnosis; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000628:therapy; D008875:Middle Aged; D010710:Phosphates / Q000097:blood; D006435:Renal Dialysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012709:Serum Albumin / Q000032:analysis
D010710:Phosphates; D012709:Serum Albumin; D002118:Calcium