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Parathyroid Hormone

Source Blood
Mnemonic PTH
Specimen Requirements

1 x 4 mL lavender top EDTA tube. Gold top SST tube also acceptable.

1.0 mL plasma or serum

Minimum Whole Blood Volumes for Microcollections

If "Pre Thyroidectomy Parathyroid Hormone" is ordered, see Parathyroid Hormone, Pre Thyroidectomy (time zero).

If "Post Thyroidectomy Parathyroid Hormone" is ordered, see Parathyroid Hormone, Post Thyroidectomy.

For Home Hemodialysis Program specimens, refer to Parathyroid Hormone - Home Hemodialysis Program Patients.

Specimen Handling

PSC & RRL:
Centrifuge within 6 hours of collection, pour off, and transport plasma or serum on ice to DSC. If sample will not be received at DSC within 48 hours, freeze before transport.

Extra-regional:
Centrifuge within 6 hours of collection, pour off, and freeze plasma or serum prior to transport to DSC.

DSC:
Freeze specimens upon receipt in lab.

Additional Information  
Testing Location Immunochemistry
Testing Frequency Weekdays
Alternate Name(s) PTH, Intact PTH, 1 - 84 PTH
Reference Interval 7 - 37 ng/L