Caffeine & Paraxanthine in Serum and Urine

 

We offer a service for caffeine and its main metabolite paraxanthine in serum and urine (also saliva if required). The indications for caffeine measurement include therapeutic drug monitoring in neonates. In other subjects it is potentially of use in assessing caffeine intake in subjects at risk of caffeinism. In particular this includes at risk groups whose intake of high caffeine energy drinks is a problem.

 

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Test:

 Caffeine and Paraxanthine

Laboratory:

Clinical Biochemistry

Specimen Type:

Serum or plasma
or
Mid stream urine (for caffeine, creatinine ratio)
Sample Requirement:  500uL

Storage:

4oC prior to posting

Posting Details:

Room temperature

Posting Address:

Department of Clinical Biochemistry, City Hospital, Dudley Road, Birmingham B18 7QH

Clinical Use:

TDM in neonates.
Potentially of use in assessing caffeinism and excessive caffeine intake.

Special Details:

Serum samples need to be collected 1-2 hours post dose in neonates receiving therapy.

Cost:

20

Turnaround:

1 -2 working days and urgent service available

External QA Scheme:

Yes, NEQAS

CPA Accredited Lab/Test:

Yes, CPA full accreditation

Website:

www.cityassays.org.uk

For further Information:

Email: info@cityassays.org.uk

  SWBH NHS TRUST 2017