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Parathyroid Hormone Intact, with Calcium, Serum
MessageDraw sites requiring courier transport please separate and send serum frozen.
Test Code
PTHI. - NOCO
CPT Codes
PTH 83970; Ca 82310
Preferred Specimen
2.0 mL from SST
Minimum Volume
1.0 mL
Other Acceptable Specimens
2.0 mL from Red Top - Separated
Transport Temperature
Serum - Frozen
Specimen Stability
| Specimen Type | Temperature | Time |
| Serum SST | Frozen | 30 day – Preferred for specimens requiring courier transport. |
| Serum SST or Red Top – Separated* |
Ambient | 4 hours |
| Serum SST or Red Top – Separated* |
Refrigerate | 8 hours |
*Centrifuge and aliquot into a plastic vial.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Two-site sandwich immunoassay using direct chemiluminometric technology
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same day
Reference Range
PTH
15 - 65 pg/mL
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Ca
0-4 years: 9.1 – 10.9 mg/dL
4-150 years: 8.8 – 10.4 mg/dL
Critical value (automatic call-back): <6.6 mg/dL or >12.9 mg/dL
15 - 65 pg/mL
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Ca
0-4 years: 9.1 – 10.9 mg/dL
4-150 years: 8.8 – 10.4 mg/dL
Critical value (automatic call-back): <6.6 mg/dL or >12.9 mg/dL
Performing Laboratory
McKee Medical Center Laboratory
North Colorado Medical Center Laboratory
