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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

(a.k.a ristocetin co factor)
minimum sample volume required ~ 2.7ml

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Tube type: 9NC

Special instructions
Contact Haem consultant before requesting. Time limit for add on= fresh sample required Interfering substances= none known.

For paediatric reference ranges, please contact laboratory.

Please note that this test is not accredited to ISO:15189 due to recent changes in equipment. This test has been verified internally and accreditation has been applied for.

Contact Laboratory before requesting

Reference range
0.49 - 1.42 (blood group O) 0.66 - 1.83 (blood group A,B & AB)


Linked to
F8c, Vwfag

Turnaround Time
42 days

Department: Haematology


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