Preferred Sample Type

Plasma Viscosity - PV

Suitable Specimen Types

  • EDTA Whole Blood

Specimen Transport

Standard transport to laboratory

Sample Preparation

Samples MUST NOT be refrigerated

Turnaround Time

7 days

Sample Stability

Room temperature for 7 days

Plasma Viscosity - PV


This is reserved for patients with hyperviscosity syndromes. If the test is required you MUST include this fact in the clinical details box, otherwise an ESR will be performed as the default.

Reference Range

1.50 - 1.72 mPa

Clinical Decision Making Values

≤1.50 mPa LPV - PV indicates a subnormal level of plasma protein fraction.
>1.50 - ≤1.72 mPa NPV - PV result normal.
>1.72 - ≤2.00 mPa IDPV - PV result suggests Inflammatory Disease.
>2.00 mPa HPV - PV result suggests Monoclonal Gammopathy.

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HTA licence number is 12366

Protection of Personal Information – Laboratory Medicine comply with the Trust Data Protection Policy and have procedures in place to allow the Directorate and it’s employees to comply with the Data Protection Act 1998 and associated best practice and guidance.

The Trust Laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital were awarded UKAS (United Kingdom Accreditation Service) accreditation to the internationally recognised ISO 15189 standard in May 2015. For a list of accredited tests and other information please visit the test database
Tests not appearing on this scope are either under consideration or in the process of accreditation and so currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further information contact Louise Fallon, Quality Manager, 0121 424 1235