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Ca+PTH Intact
Test Code054601
Alias/See Also
PTH-Intact
CPT Codes
83970, 82310
Preferred Specimen
Plasma AND serum
Minimum Volume
0.7 mL plasma AND 0.5 mL serum
Instructions
Plasma: Transfer separated plasma to a plastic transport tube clearly labeled as EDTA plasma and maintain refrigerated temperature. Serum: If red-top tube is used, transfer serum to a plastic transport tube clearly labeled as serum.
Transport Container
Lavender-top (EDTA) tube AND red-top tube or gel-barrier tube
Transport Temperature
Refrigerate
Specimen Stability
Room temp: 3 days; Refrigerated: 3 days; Frozen: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Whole blood; plasma other than EDTA; hemolysis; room temperature serum sent for PTH Intact
Methodology
Plasma: Electrochemiluminescence immunoassay (ECLIA) Serum: Colormetric
