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PLEASE NOTE: Recent changes have been made to this Test

Recent changes for Parathyroid Hormone

Recent changes for Parathyroid Hormone
Date	Field	Changed From	Changed To
2nd April 2026	Optional Container Type		EDTA 3 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.	Note: A separate EDTA tube is required for PTH testing. Alfred Care Group - Preferred sample is a 10 mL EDTA specimen. Western Health - Preferred sample is a 3 mL EDTA specimen. Note- PTH CANNOT be added on retrospectively.

Date

Field

Changed From

Changed To

2nd April 2026

Optional Container Type

EDTA 3 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.

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

Alfred Care Group - Preferred sample is a 10 mL EDTA specimen.

Western Health - Preferred sample is a 3 mL EDTA specimen.

Note- PTH CANNOT be added on retrospectively.

Parathyroid Hormone

Alternative Names:

PTH
PTH (1-84)

Laboratory:

Clinical Biochemistry

Test Code:

PTH

Specimen Types:

Blood

Container Types:

EDTA 10 mL
EDTA 3 mL

Adults Volume or Mass:

3 mL

Minimum/Paediatric Volume or Mass:

1 mL

Collection & Request Instructions:

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

Alfred Care Group - Preferred sample is a 10 mL EDTA specimen.

Western Health - Preferred sample is a 3 mL EDTA specimen.

Note- PTH CANNOT be added on retrospectively.

Transport Instructions between Sites and/or Laboratories:

Transport samples between laboratories at 4 C in an esky.

Assay Frequency:

24/7

MBS Rebatable:

Yes

MBS Item No.:

66695

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

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 if further discussion is required.

Chemical Pathologist, Alfred Care Group (03) 9076 7547

Chemical Pathologist, Western Health