Referred to Berkshire & Surrey Pathology Services, Frimley Park Hospital NHS Foundation Trust, Portsmouth Road, Frimley, Surrey GU16 7UJ
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Alternative names, keywords |
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Samples required |
Note significant diurnal variation - sampling time in relation to dose is important. Ideal sampling time is immediately before an oral dose. 3 to 8 days to steady state. Date and time of sample and of last dose must be given. |
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Test indications |
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Reference range |
3 - 15 mg/L (target range). |
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Turnaround time |
Referral lab quotes turnaround time of 7 days, however additional time must be allowed for packing, dispatch and delivery of sample, and return and processing of results. |
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Enquiries |
Biochemistry (Referrals) |
Clotted blood (gold cap, 5 mL tube). Smaller tubes are available for paediatric samples.