Biochemistry

Preferred Sample Type

Glucose (CSF)

Glucose (CSF)

Specimen Volume

5-10 mL vacutainer (minimum sample volume 50 uL)

Sample Preparation

Analysis should be undertaken promptly because glucose metabolism continues after the sample has been aspirated.

Turnaround Time

1 day

Sample Processing In Laboratory

Usual

Sample Stability

If unable to analyse sample immediately, store at 4 ºC.

General Information

CSF glucose or glycorrhachia is a measurement used to determine the levels of glucose in cerebrospinal fluid. Normal levels are about 2/3 the concentration of blood glucose. Glucose levels may decrease when cells that are not normally present metabolise the glucose. These may include bacteria or cells present due to inflammation (WBCs) or shed by tumours. CSF glucose will therefore be decreased in bacterial meningitis, tuberculous meningitis and subarachnoid haemorrhage. Glucose levels are usually within normal limits in viral or aseptic meningitis.

Patient Preparation

None

Notes

None Given

Reference Range

Adults: 2.2 - 3.9 mmol/L

Results should be interpreted in relation to concurrent plasma values (the CSF glucose concentration should be 60% of the plasma glucose concentration).

Specifications

  • EQA Status:

    Neqas

  • EQAS Scheme: Yes

Link to Further Information

http://www.labtestsonline.org.uk/understanding/analytes/csf/csf-exams?start=1

Related Tests

Total Protein (CSF)

Creation Date

Monday, 08 August 2011

Modification Date

Tuesday, 02 April 2024

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Protection of Personal Information – Clinical Laboratory Services 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.

University Hospitals Birmingham medical laboratories at Queen Elizabeth Hospital, Heartlands Hospital, Good Hope Hospital and Solihull Hospital are UKAS (United Kingdom Accreditation Service) accredited to the ISO 15189:2012 standard. For a list of accredited tests and other information please visit the UKAS website using the following link: https://www.ukas.com/find-an-organisation/

  • Molecular Pathology is a UKAS accredited medical laboratory No. 8759
  • Biochemistry is a UKAS accredited medical laboratory No. 8910
  • Haematology and Transfusion is a UKAS accredited medical laboratory No. 8784
  • Clinical Microbiology is a UKAS accredited medical laboratory No. 8760
  • Cellular Pathology is a UKAS accredited medical laboratory No. 10141
  • Musculoskeletal laboratory is a UKAS accredited medical laboratory No. 9897
  • Heartlands, Good Hope and Solihull Hospital pathology laboratories are a UKAS accredited medical laboratory No.8217.

Tests not appearing on the UKAS Schedule of Accreditation 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 test information, please visit the test database: http://qehbpathology.uk/test-database

For further information contact Louise Fallon, Quality Manager, 0121 371 5962