
C4 Complement near me in Kolkata









Available at an affordable price in Kolkata with Tata 1mg labs, the C4 Complement, the C4 Complement test is a blood test that assesses levels of Complement Component 4 (C4), a protein involved in the immune system's complement cascade. This test is helpful in detecting autoimmune diseases, infections, and other conditions where there is dysfunction in the immune system.
The C4 Complement test is especially helpful in identifying and monitoring autoimmune disorders, where changes in C4 levels are indicative of disease flare-ups or remission phases. Doctors may also advise the C4 blood test to individuals who have unexplained symptoms of autoimmune or inflammatory conditions, such as joint pain, renal issues, skin rashes, recurrent infections, or if you have a family history of autoimmune diseases. It is also used to assess disease activity and effectiveness of treatment in patients with SLE or other conditions that involve complement system dysregulation.
Overnight fasting (8 to 12 hours) is preferred for this test, however not mandatory.








What does C4 Complement measure?
The C4 Complement test measures the complement protein C4 level in the blood, which is an important part of the immune system. C4 has an important role in the complement system that fights infections, triggers inflammation, and clears out damaged cells. By determining C4 levels in the blood, this test offers crucial insights into the activity and functionality of the complement system. Abnormal (lower or higher than healthy range) results may point toward autoimmune conditions, inflammatory diseases, or infections, helping doctors diagnose and monitor various health issues related to the immune system.





FAQs related to C4 Complement in Kolkata
- Complement C4 (Blood) [Internet]. Rochester, NY: University of Rochester Medical Center; [Accessed 03 Dec. 2024]. Available from:
- Birmingham DJ, Irshaid F, Nagaraja HN, Zou X, Tsao BP, Wu H, Yu CY, Hebert LA, Rovin BH. The complex nature of serum C3 and C4 as biomarkers of lupus renal flare. Lupus. 2010 Oct;19(11):1272-80. [Accessed 03 Dec. 2024]. Available from:
- Janeway CA Jr, Travers P, Walport M, et al. Immunobiology: The Immune System in Health and Disease. 5th edition. New York: Garland Science; 2001. The complement system and innate immunity. Available from:
- Wang H, Liu M. Complement C4, Infections, and Autoimmune Diseases. Front Immunol. 2021 Jul 14;12:694928. [Accessed 03 Dec. 2024]. Available from:
- Copenhaver MM, Yu CY, Zhou D, Hoffman RP. Relationships of complement components C3 and C4 and their genetics to cardiometabolic risk in healthy, non-Hispanic white adolescents. Pediatr Res. 2020 Jan;87(1):88-94. [Accessed 03 Dec. 2024]. Available from:
Other tests
- FBS (Fasting Blood Sugar) in Kolkata
- PPBS (Postprandial Blood Sugar) in Kolkata
- CBC (Complete Blood Count) in Kolkata
- Good Health Gold Package with Smart Report in Kolkata
- Lipid Profile in Kolkata
- HbA1c (Glycosylated Hemoglobin) in Kolkata
- LFT (Liver Function Test) in Kolkata
- Comprehensive Gold Full Body Checkup with Smart Report in Kolkata
- Urine R/M (Urine Routine & Microscopy) in Kolkata
- Serum Creatinine in Kolkata
- PT INR (Prothrombin Time with INR) in Kolkata
- HIV 1 and 2 Antibody, Rapid Screening Test in Kolkata
- Viral Marker Screening (HIV, HBsAg, Anti-HCV) in Kolkata
- Total IgE in Kolkata
- Rheumatoid Factor - Quantitative in Kolkata
- STD Panel (Sexually Transmitted Diseases Panel) in Kolkata
- HIV Combo (Antigen And Antibody) Test in Kolkata
- Anti-CCP Antibody in Kolkata
- Lipid Profile, Non Fasting in Kolkata
- Anti-Nuclear Antibody (ANA) by IFA - End Point Titer in Kolkata
- Allergy Panel (107 Allergens), LIA in Kolkata
- Cervavac Vaccine (Vaccination at Home) in Kolkata
- Influvac Tetra 2025/2026 Vaccine (Vaccination at Home) in Kolkata
- HLA B27 (Human Leukocyte Antigen B27) - PCR in Kolkata
- Gardasil Vaccine (Vaccination at Home) in Kolkata
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)















