Eurofins Biomnis code

CAIO

Synonyms

• Free calcium

Specialty

Biochemistry

Clinical significance

This measurement of the biologically active fraction of the circulating calcium is useful for the investigation of calcium metabolism in malignancy, hyper- and hypoparathyroidism, nephropathy with acid-base imbalance, acute pancreatitis and emergency situations involving massive blood transfusions or serious burns. Variations in calcium ion levels follow those of total calcium except in acidosis in which condition the ion fraction is increased due to reduced binding by proteins; in alkalosis, the ion fraction is reduced.

Preanalytics

• 5 mL :
• Serum not decanted on a dry tube with separator gel, never open the tube: IMPERATIVE
•   FROZEN
• 1 hour

• A tube specifically for this analysis : Yes

Further information

Not to to be performed on haemolysed sample
Collect a specific aliquot for this test.Note : the sample will be used for this test only, do not associate another test request on the same sample
Freeze the sample within 1 hour after sampling
No sampling on glass tubes

Methodology

Direct potentiometry

Turnaround time

1 day