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Calcium Free, Serum ; Calcium Unbound, Serum; Calcium Filterable; Ca++, Ionized
Cannot be shared with other specimens.
Volume: 1 ml. Min. volume: 1 ml
Evaluates non-bound calcium; if the tube is opened , the serum is exposed to air which causes a loss of carbon dioxide to the atmosphere. This changes the sample pH and can prevent lab from measuring the ionized calcium
Specimen Processing Instructions
DO NOT OPEN TUBE! Place a label on tube that states DO NOT OPEN; Do not freeze. Tube cannot be shared for other tests
Room temp or refrigerate; Do not freeze
14 days with unopened tube
Opened tube; plasma or whole blood; hemolysis ; quantity not sufficient
Reference Range accompanies report
Ion-selective electrode (ISE)
* Denotes Reference Lab Test
Reviewed by Lisa McBride on February 20, 2018
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