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HelpEpic Test Code LAB8108 Parathyroid Hormone (Intraoperative)
Performing Location(s)
BMC
Specimen Type
Plasma
Specimen Required
1 Dark Lavender tube
Blood Tube Draw Volume
Min 50% draw volume
50% of the tube fill volume is required for proper blood to additive ratio.
Minumum Volume to Submit for Testing
2 mL Plasma
- Multiple test can be performed from this volume. For question please contact the lab at 547-3975
Storage Requirements
Freeze the plastic aliquot tube containing the serum for the PTH at -15° to -25°C.( Specimen is stable for 48 hours refrigerated or 8 hours room temp)
Transportation Needs
Deliver primary specimens to the laboratory ASAP.
Causes for Rejection
Less than 50% draw for Vacutainer tubes
Mislabeled or unlabeled specimen
Plasma not separated from cells within 2 hours of collection
Specimen > 48 hours refrigerated
Specimen >8 hours at room temperature
NaF
Hemolysis >4+ (500 mg/dL)
Lipermia >4+ (3000 mg.dL)
Reference Values
| PTH, Intact Reference Range | ||
| Population | Units | Reference Range |
| > 18 years | pg/mL | 12.0-88.0 |
Includes
PTH, Intact only
Limitations
Patient who have been regularly exposed to animals or have received immunotherapy or diagnostic procedures utilizing Immunoglobulins or Immunoglobulin fragments may produce antibodies (E.g. HAMA) that may interfere with this assay and cause erroneous results. If this is suspected, PTH-HAMA may be ordered to rule out this interference.
Pediatric reference ranges have not been established. For patient ≤ 18 years old, order PTH2.
Additional Information
Additional Information:
Intact PTH has been demonstrated to be labile, and is susceptible to fragmentation. This instability depends on both time and temperature. Centrifuge ASAP after collection. Aliquot Plasma and store frozen if not tested within 8 hours.
This test is available on a STAT basis, for the OR only.
Days of Analysis
M-F
Available STAT
Yes for OR only
Methodology
Beckman AU/Dx Series
CPT Code
83970
Last Updated
11-Nov-21 BHD