Parathyroid Hormone-Related Peptide by LC-MS/MS, Plasma PTHREP

Method(s) Quantitative High Performance Liquid Chromatography - Tandem Mass Spectrometry
Specimen Required
Collect

Protease Inhibitor tube.

Transport

1.5 mL plasma. (Min: 0.7 mL)

Remarks A butterfly collection set must be used. NOT RECOMMENDED: Filling collection tubes directly through a needle/tube-holder assembly increases the risk of chemical reflux back into the vein of the patient. Mix collection tube thoroughly. Separate the plasma from cells within 1 hour of collection by centrifugation.
Stability

After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 3 months

Unacceptable Conditions Grossly hemolyzed specimens.
Schedule Sun, Wed, Fri
Billing Code 5011490
CPTCode 82542
Notes

Amino (N)- and carboxy (C)-terminus PTHrP fragments, such as those produced by some patients with renal insufficiency, do not interfere with this assay.

Preferred Specimen Collection Device(s)
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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