PTH, INTACT

Message
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Test Code
PTH


Alias/See Also
76774;
INTACT PTH


CPT Codes
83970

Preferred Specimen
2 mL Serum


Minimum Volume
1 mL for Adults
0.5 mL for infants


Other Acceptable Specimens
Plasma from K3EDTA (lavender top) tube


Instructions
Avoid hemolysis. Invert a minimum of 5 times then allow to clot in an upright position for 30 minutes. Centrifuge the SST for at least 10 minutes. Keep tightly stoppered


Transport Container
SST (speckled top) tube


Transport Temperature
Refrigeraed


Specimen Stability
Room Temperature = serum - 4 hours
                                    plasma 8 hours
Refrigerated = serum 48 hours
                         plasma - 72 hours
Frozen = 4 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis


Methodology
Immunochemiluminometric Assay (PTH)

Setup Schedule
Tuesday - Saturday


Report Available
2 days


Clinical Significance
Useful in making the diagnosis of primary hyperparathyroidism, secondary hyperparathyroidism, and a differential diagnosis of hypercalcemia.


Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439


Last Updated: August 11, 2022


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.