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PTH BASELINE, INTRAOP (PHS)
MessageChemistry
Test Code
LAB2269
Alias/See Also
Parathyroid
CPT Codes
83970
Includes
Para thyroid Hormone
Preferred Specimen
Lav (EDTA), Plasma
Minimum Volume
2 ml. plasma
Other Acceptable Specimens
Gold, Serum
Instructions
Testing is scheduled in advance, O.R. responsible for notifying
lab at least 24 hours before surgery and providing phone extension for
notification of results.
The collection tube label, in addition to the standard patient information,
should include the date and time of draw, employee # and draw interval
i.e. Baseline. Documentation in HIS/LIS Acceptable
LAB:
Lab will place process Intraoperative PTH orders upon receipt of specimen and call
results to phone extension provided.
lab at least 24 hours before surgery and providing phone extension for
notification of results.
The collection tube label, in addition to the standard patient information,
should include the date and time of draw, employee # and draw interval
i.e. Baseline. Documentation in HIS/LIS Acceptable
LAB:
Lab will place process Intraoperative PTH orders upon receipt of specimen and call
results to phone extension provided.
Transport Container
WALK SPECIMENS DOWN TO LAB - Use downtime order form if unable to order in LIS
Specimen Stability
Serum and plasma samples may be stored for up to 2 days at 2–8 °C (36–46 °F) or 4 weeks at -20 °C (-4 °F).
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Do not use turbid specimens. Turbidity in specimens may affect test results.
Do not use hemolyzed specimens.
Do not use hemolyzed specimens.
Methodology
Immunometric
FDA Status
Approved
Setup Schedule
Schedule with OR and Laboratory
Report Available
Same day
Limitations
Biotin levels in serum remain elevated for up to 24 hours after oral or intravenous biotin administration Heterophilic antibodies in serum or plasma samples may cause interference in immunoassays. 13 These antibodies may
be present in blood samples from individuals regularly exposed to animals or who have been treated with animal serum
products. Results which are inconsistent with clinical observations indicate the need for additional testing. Certain drugs and clinical conditions are known to alter PTH concentrations in vivo. For additional information, refer to
one of the published summaries
be present in blood samples from individuals regularly exposed to animals or who have been treated with animal serum
products. Results which are inconsistent with clinical observations indicate the need for additional testing. Certain drugs and clinical conditions are known to alter PTH concentrations in vivo. For additional information, refer to
one of the published summaries
Reference Range
8-75 pg/mL
Performing Laboratory
Irvine only
