Specimen: 2 mL (0.5 mL min.) serum from 1 SST. Ship refrigerated or frozen. Overnight fasting is preferred.
Stability (Room): 8 hrs
Stability (Refrigerated): 1 week
Stability (Frozen): 2 weeks
Comment: Also see HISTOPATHOLOGY, DIRECT IMMUNOFLUORESCENCE TESTS.
Price: Contact Medilab
Turnaround time (TAT): 5 – 15 days
Usage: C3 is an acute phase reactant. Decreased levels are seen in patients with SLE, Endocarditis and DIC. Congenital deficiency of C3 increases the risk of recurrent bacteremia. This assay is useful for the diagnosis of C3 deficiency and for investigation of a patient with an undetectable Total complement (CH50) level.
Specialty: Nephrologist, Physician
Disease: Disorders of Complement system
Home Collection: Available
Pre-test Information: Overnight fasting is preferred.