D E Q A S (Vitamin D External Quality Assessment Scheme)

Scheme Organiser: Dr Emma Walker

Endocrine Laboratory - Charing Cross Hospital - Fulham Palace Road - London W6 8RF - UK
Telephone: +44 (0)20 331 33645 - Email:

Registration Form

Financial Year: 1 April 2024 - 31 March 2025

The Scheme is open to all bona fide laboratories involved in the analysys of 25 hydroxyvitamin D (25OHD) and 1,25 dihydroxyvitamin D (1,25(OH)2D) assays.

Please send no remittance now. You will be invoiced for the amount.

Main Contact Details:

	Contact Name:
	Organisation Name:
	Department:


	Town / City:
	County / State:
	Zipcode / Postcode:
	Country:
	Telephone No:
	Extension:
	Fax:
	Email *:
		* Please ensure that your email address is correct as this will be used for all future correspondence

Sample address (the name and contact details of the person to whom samples should be sent. Check and complete if different from main address):

	Contact Name:
	Organisation Name:
	Department:


	Town / City:
	County / State:
	Zipcode / Postcode:
	Country:
	Telephone No:
	Extension:
	Fax:
	Email:

Finance / Invoice address (check and complete if different from main address):

	Contact Name:
	Organisation Name:
	Department:


	Town / City:
	County / State:
	Zipcode / Postcode:
	Country:
	Telephone No:
	Extension:
	Fax:
	Email:

Scheme (click the scheme(s) you wish to register for)

Register

Order Number*

25 Hydroxyvitamin D †
5 samples per Round. (4 Rounds per year.)

1,25 Dihydroxyvitamin D †
5 samples per Round. (4 Rounds per year.)

25-hydroxvitamin D - Supplementary scheme †
Limited availability - currently only available to UK and Irish participants
3 samples per Round. (4 Rounds per year.)


*	If available, please provide an order number here. It is not necessary to enter a separate order number for each scheme.
†	Each sample is approximately 0.6 ml (25OHD) and 1.50 ml (1,25OH)2D. If this is insufficient for your assay, please indicate volume required in additional information below
	Please use this space below to submit any additional information you think is relevant:

Date:	04 December 2024