Serum ( blood)
Gold Top Clotted (5ml)
Please state time of collection and label with the minimum patient identification. Labelling must include the following:
Please include relevant clinical details and any antimicrobial therapy the patient is taking
Sent to reference laboratory
1-2 weeks
https://www.gov.uk/government/collections/diphtheria-guidance-data-and-analysis
Specimen Labelling Procedure