- Specimen
- 2.0 mL serum anaerobically transferred from spun red top or serum separator tube into a plain, unopened red top tube.
- Description
- Used to further explore the relevance of abnormalities in total calcium by assessing its ionized fraction.
Interferences: aerobic exposure, or severe lipemia
Note: sample must be anaerobically transferred from spun collection tube into plain red top.