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Parathyroid Hormone

Alternative Names:PTH
PTH (1-84)
Laboratory:Clinical Biochemistry
Test Code:PTH
Specimen Types:Plasma
Container Types:
EDTA 10 mL
Collection & Request Instructions:

 

Note: A separate EDTA tube is required for PTH testing.

If requesting both FBE and PTH - 1  x 3 mL  and 1 x 10 mL EDTA tubes must be collected and sent to the laboratory for analysis.

 

ADD ON requirements- Note-  PTH CANNOT be added on retrospectively.

 

If test required please recollect EDTA specimen.

Transport Instructions between Sites and/or Laboratories:

Transport samples between laboratories at 4 C in an esky.

Assay Frequency:Daily
Additional Notes:

Reference Interval:  1.6—6.0 pmol/L

Interpretation depends on serum calcium level, renal function and Vitamin D status.

Source: Roche kit insert: version no. 2016-12,V4.0

Method changed to Roche Elecsys PTH (1-84) from Roche Elecsys iPTH on 8/05/2017.

Note: Changed Reference Interval 

Please contact Prof. Hans Schneider (pager 4367) or Chemical Pathology registrar (pager 5459) for further clarification.

Note: Biotin supplementation may cause falsely low results due to interference with the PTH assay. If the patient is known to be taking Biotin, interpret results with caution and contact the Chemical Pathologist (03) 90763118 if further discussion is required.