Sample type: Serum
Test name: C1 Esterase Inhibitor
Condition / Indication: Diagnosis and monitoring of C1 esterase inhibitor
Special precautions & notes: Very low levels seen in hereditary angioedema. (Rare; 1/50000). C4 is always low in acute episodes. Freeze within 24 hours of venepuncture. Samples must be transported frozen to NBT.
Reference range: Immunochemical 0.21-0.38g/L, Functional >70%
Container: Serum (Gold top)
Ideal volume (mL): 2 mL
Referred outside NBT for analysis? No
Turnaround time: 14 days
Information for Laboratories referring samples for analysis at NBT:
Minimum volume 200ul serum.
Freeze within 24 hours of venepuncture.
Sample must be transported frozen to NBT.
Immunochemical - Turbidimetry. Functional - colourimetric