Parathyroid Hormone, Intact with Calcium, serum
Test Code
PTHWC
Description
The assay is useful in making the diagnosis of primary hyperparathyroidism, secondary hyperparathyroidism, and a differential diagnosis of hypercalcemia. The assay helps in distinguishing hypercalcemia cause by either primary hyperparathyroidism or malignant disease.
Collect
Plain red top or SST tube.
Pediatric Collection
Minimum volume: 0.3mL serum
Unacceptable Conditions
Grossly hemolyzed specimens, lipemic samples
Storage Transport Temp
Offsite: Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability
If not processed immediately than freeze at ≤ -20°C
2 days refrigerated at 2-8°C
6 months frozen at ≤ -20°C
Performed
Mon-Fri
Methodology
Chemiluminescent Magnetic Immunoassay (CLIA)
Turnaround Time
Results same day if samples received Mon & Thurs prior to 6PM; 48-72 hours
Department
Core Lab
Synonyms
PTH Intact;PTHI (Parathyroid Hormone Intact), Calcium;PTHWC
Study Offerings
Not offered
Reference Interval
All Ages
Male = 12-88 pg/mL
Female = 12-88 pg/mL
CPT Code
83970, 82310
New York Approved
FDA Approved or Cleared
FDA
Approved or Cleared