Changes/updates to reference ranges for all thyroid tests

Belinda Hodson made this Official Information request to Waikato District Health Board

Response to this request is delayed. By law, Waikato District Health Board should normally have responded promptly and by (details and exceptions)

From: Belinda Hodson

Dear Waikato District Health Board,

1. Please provide all policy updates/changes to all thyroid test reference ranges (TSH, Free T3, RT3, thyroid anti-body etc.) recommended by Pathlab and approved by the Waikato DHB for implementation by Pathlab; and implemented by Pathlab, during the period 1st January 2010 to 20 July 2018; along with:

a) the rationale for these updates/changes and the citation list of the clinical publications supporting these changes/updates (clinical research studies and other clinical papers including guidelines referenced); plus

b) the associated ‘clinical updates’ for these changes/updates that have been posted in the clinicians information area of Pathlab's website; plus

c) Copies of reports of these updates/changes provided to the Waikato District Health Board by Pathlab or produced by the Waikato District Health Board, which monitor the impact of these updates/changes on patient's health and well-being.

2. For the period 1st January 2010 to 20th July 2019, copies of all correspondence associated with Waikato DHB and Pathlab approved updates/changes to thyroid testing policy (the thyroid tests themselves and reference ranges) with other NZ medical lab companies, the Royal Australasian College of Physicians (https://www.racp.edu.au/), Ministry of Health and https://bpac.org.nz/.

Yours faithfully,

Belinda Hodson

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