General testing guide C4 (Complement 4) Test: Price, Report & Procedure in Basti
C4 is a protein that is essential for immune function. It aids to kill disease-causing bacteria, clear infections, and viruses & protects against autoimmunity.
Group NameAUTOIMMUNE
FastingFasting not required
Sample TypeBlood (Serum)
Sample CollectionHome sample collection
ReportsMost reports: 24–48 hours after the sample reaches the lab; timing varies by test.
Report typeDigital report
No fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions.
Complement 4 (c4) Test Visual Guide
Measures complement C4 protein used with C3 in autoimmune and immune activity review.
Download Complement 4 (c4) Test Visual Guide infographic (PNG)
ResultReported in mg/dL.
What it showsCurrent complement level.
SampleSerum. No fasting required.
Common useAutoimmune activity context.
How C4 Works
- Complement protein measuredClassic pathway marker
- Level can fallImmune complex activity context
- Pattern reviewedC3 and antibodies add meaning
Typical result context
| Result context | Guide |
|---|---|
| Typical adult | lab specific |
| Low | immune activity context |
| High | inflammation context |
C4 is interpreted with C3, ANA/dsDNA and clinical autoimmune features.
Why it may be advised
- Lupus activity review
- Autoimmune inflammation context
- Complement pathway work-up
When to discuss it
- Known lupus
- Positive autoimmune antibodies
- Doctor-advised complement review
Often reviewed with
- C3
- Anti dsDNA
- ANA
Simple Testing Flow
- BookSelect C4 test online
- Home VisitCollection executive arrives
- SampleSample collected as instructed
- Lab ReportProcessed and shared digitally
No fasting
- Usually no fasting
- Share autoimmune treatment status
May affect result
- Active flare
- Treatment status
- Sample handling
Paired marker
- C3+C4 pattern is useful
- Trend helps monitoring
About the Complement 4 (c4) Test
Complement 4 (c4) is a laboratory test. C3/C4 help measure complement pathway activity.
Your clinician can advise whether this test is appropriate for you. The result should be read with the laboratory range, symptoms, medical history and other relevant results. The listed sample type is Blood (Serum).
Complement C3 / C4 Reference Guide in Basti
Reference ranges vary by laboratory and method. Use the range printed on your final report. The information below is educational only.
General Educational Range (Not a Report Range)
| Measure | Typical guide | Note |
|---|---|---|
| Result unit | mg/dL | Use the reference range printed on your final report. |
| Low complement | Below lab range | May suggest immune-complex activity or consumption. |
| High complement | Above lab range | May rise with inflammation. |
Why This Test Is Ordered
| Reason | Description |
|---|---|
| Immune system proteins | C3/C4 help measure complement pathway activity. |
| Lupus follow-up | Often used to monitor autoimmune activity. |
| Infection/immune review | Can support broader immune evaluation. |
Symptoms And Who Should Test
| Situation | Description |
|---|---|
| Symptoms | Joint pain, rash, swelling, recurrent infections, kidney findings. |
| Risk context | Lupus, autoimmune disease or complement deficiency concern. |
| Follow-up users | People with positive ANA/dsDNA or kidney involvement. |
Preparation And Interpretation Notes
| Topic | Guidance |
|---|---|
| Fasting | No fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions. |
| Pairing | Read with ANA, anti-dsDNA, ESR/CRP and urine tests. |
| Interpretation | Trend may matter in autoimmune follow-up. |
Sources:
Testing.com Complement
Complement 4 (c4) Test FAQs in Basti
The current Complement 4 (c4) price in Basti is Rs. 545. The final booking details are shown before you confirm.
No fasting is required for this test alone. If another test in the same order requires fasting, follow its preparation instructions.
Select Add to Cart or Book Now, choose a suitable slot and provide your address and pincode. Home collection is available where serviceable.
Payment is made after sample collection. Review the final booking amount before confirming your order; the collection team can confirm the available payment methods.
Your report shows the laboratory reference range. A doctor can interpret the result together with your symptoms, medical history and other tests.
Thyrocare states that most test reports are available within 24–48 hours after the sample reaches the laboratory, depending on the test. This is a general estimate, not a guaranteed turnaround for this test; sample transport time is additional. Completed reports are shared digitally.
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Complement 4 (c4) Test Price in Basti
Test conducted by
Rs. 595
Rs. 545 8% Off
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Free Home Sample Collection in BastiSubject to pincode confirmation at booking.
Pay after sample collection
