OVERVIEW:
What is the C 3 (complement level 3) lab test?
A C 2 (complement level 3) lab test is a blood test that measures the level of C 3 in the blood.
Why is the C 3 (complement level 3) lab test done?
A C 3 (complement level 3) lab test is done in order to:
- Diagnose C 3 deficiency,
- Monitor the level of C 3 in the blood.
What does the C 3 (complement level 3) lab test measure?
A C 3 (complement level 3) lab test measures the amount of C 3 circulating in the blood. C 3 is a protein of the immune system. C 3 plays a vital role in the activation of the complement system and backs the innate immunity of an individual.
Are there any risks associated with this test?
There are no known risks associated with this test.
How should I prepare for this test?
This test does not require any special preparation.
When is this test ordered?
This test is ordered when a person has unexplained inflammation or edema or symptoms of an autoimmune disorder.
How will this test feel?
When the needle is inserted to draw blood, some people feel moderate pain. Others may feel only a prick or stinging sensation.
Which conditions are associated with an increased complement activity?
Cancer and ulcerative colitis (inflammation and ulcers in the digestive tract) cause an increase in the complement activity.
The normal level of C 3 (complement level 3) in males is 88-252 mg/dL.
The normal level of C 3 (complement level 3) in females is 88-206 mg/dL.
A C 3 (complement level 3) lab test is done in order to:
- Diagnose C 3 deficiency,
- Monitor the level of C 3 in the blood.