C3 Complement Test in Mumbai - Metropolis Healthcare
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C3 Complement Test in Mumbai



Complement C3 is a blood test that assesses the activity of a some proteins that are a part of the complement system. 

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    To determine whether deficiencies or abnormalities in complement system proteins are contributing to increased infections or increased autoimmune activity; to help monitor the activity and treatment of autoimmune diseases and immune complex-related diseases.

Your doctor would recommend this test for you if you have the following symptoms:

  1. Fungal infection
  2. Malaria
  3. Paroxysmal nocturnal hemoglobinuria (PNH)

The complement system is complex and composed of a set of more than 30 circulating blood proteins that work together to promote immune and inflammatory responses. Its principal role is to destroy foreign pathogens like bacteria and viruses. The complement system can also be activated when the body makes antibodies against its own tissues that it thinks are foreign (autoantibodies) as happens in autoimmune diseases. Complement tests measure the number or activity of complement proteins within the blood.

Reference Values Of C3 Complement Test



Age Range Type

Value mg/dL


Less than or equal to 1 years



Between 1 - 17 years



Less than or equal to 1 years



Between 1 - 17 years



Greater than 17 years



Greater than 17 years




Complement levels can also be decreased because of increased consumption or, more rarely, a hereditary deficiency. Hereditary deficiency in one among the complement proteins will usually cause a high frequency of recurrent microbial infections. Decreased complement levels are associated with an increased risk of developing an autoimmune disease. Both C3 and C4 levels are typically depressed in SLE while C3 alone is low in septicaemia and infections caused by fungi or parasites such as malaria.

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Frequently Asked Questions

Yes our laboratory is accredited by the NABL (National Accreditation Board of Testing and Calibration of Laboratories) India & College of American Pathologists (CAP). This accreditation process is carried out every 2 years for NABL & annually for CAP with periodic internal audits carried out twice in a year. All our aforementioned tests are accredited by NABL & CAP.

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Additional Home Visit and Safety charges will be applicable for all test and Health packages.

We collect samples from home between 7 AM to 11 PM (in Mumbai) and 7 AM to 9 PM in other cities. we offer Blood collection service on Sunday’s as well.

Doctor’s prescription is not required if you avail any wellness package. For any illness test, prescription might be required.

Test samples are processed at our regional laboratories in various cities – Mumbai, Pune, Chennai, Bangalore, Delhi and more. You can check out more information here – Our Labs

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C3 Complement Test