Complement C3
Access Medical Labs
Sample type: Serum
Requires fasting: No
Sample collection required
Details
Complement C3 is a protein in the immune system that plays a key role in the complement cascade, which helps fight infections and clear damaged cells. A C3 test measures its levels in the blood and is often used to evaluate immune function or inflammatory conditions. Low C3 levels may indicate autoimmune diseases like systemic lupus erythematosus (SLE) or complement system deficiencies, while elevated levels can be seen in acute or chronic inflammation.
- Complement Component C3c
Estimated days for results: Results should arrive 2 business days after the lab receives samples.
2 business days
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing.
Preferred or Independent Phlebotomist
- Location: Use Fullscript's directory to find a local phlebotomist.
- Cost: Varies by provider; typically $30 – $80.
- Scheduling: Schedule your appointment here. Contact your selected provider directly for availability. Calling by phone is recommended.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- If you have ordered additional Access Medical Labs tests, collect those samples before your blood draw and bring them with you. YOU MUST ship all of your Access Medical Labs test samples together.
- More Info:
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- If you have ordered additional Access Medical Labs tests, collect those samples before your blood draw and have them ready to ship. YOU MUST ship all of your Access Medical Labs test samples together.
- More Info: Getlabs blood draw guide
- Preferred Specimen(s): 1 mL serum
- Alternative: NA
- Minimum Volume: 1 mL
- Collection Instructions: NA
- Transport Container: Serum separator tube (SST)
- Transport Temperature: Refrigerated (Cold Packs)
- Specimen Stability:
- Refrigerated: 3 days
- Frozen: 3 weeks
- Reject Criteria:
- Hemolysis • Moderately or grossly icteric • Lipemic
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
