Sample type: Plasma

Test name: Vitamin C a.k.a. ascorbic acid

Special precautions & notes: Rarely useful, difficult to interpret. Protect sample from light, send to lab within 15 mins of collection for immediate centrifugation (sample must be sent on ice to referral lab by same day courier).

Reference range: Reference range quoted on report provided by referral laboratory.

Container: Li heparin (green top)

Ideal volume (mL): 2 mL

Referred outside NBT for analysis? Yes

Discipline: Clinical Biochemistry

Turnaround time: 4 weeks

Referral location: Nutristasis Unit, Haemostasis and Thrombosis, Synnovis, 8th Floor, North Wing, St Thomas' Hospital, London, SE1 7EH