Immunoglobulin G Subclasses 1, 2, 3, 4 (IgGSub, IgG subclasses)

Hospital or GP.
All Colchester & Ipswich samples: 7.5ml Brown Serum.
All GP & Community samples sent to Ipswich hub. Colchester Acute sent to (COL) Blood Sciences, URGENT Community/Primary Care (NEE) sent in RED sample bag to Colchester Blood Sciences. Referred for analysis with longer turnaround time.
Non-fasting. No specific patient preparation required.