Total serum complement, Total complement, CH50, Complement total
3 mL plain blood
Send blood tube immediately to the laboratory at 2 – 8oC with an ice pack. If unable to send to the laboratory within 4 hours, separate the serum first (the serum may be kept at 2 – 8oC in the refrigerator while awaiting despatch) and then send to the laboratory with an ice pack. The sample must reach the laboratory within 24 hours after blood collection (<= 24 H old).
Sample sent without ice pack from hospitals or laboratories other than SGH will be rejected.
Normal values: 60 – 156 CAE Units
Range 2 – 7 days
Batch tested, once/week