Lab test
C4 Complement
Also known as: Complement component 4, C4 Complement Blood Test, C4
Purpose of C4 Complement Test The test measures the concentration of C4 protein in the blood to: Diagnose Autoimmune Disorders: Primarily used to detect and monitor Systemic Lupus Erythematosus (SLE), rheumatoid…
- Sample
- Serum
- Preparation
- No fasting needed
- Report in
- 12 hours
- Collection
- At your home
About this test
Purpose of C4 Complement Test
The test measures the concentration of C4 protein in the blood to:
- Diagnose Autoimmune Disorders: Primarily used to detect and monitor Systemic Lupus Erythematosus (SLE), rheumatoid arthritis, and vasculitis.
- Evaluate Immune Function: Assesses the classical complement pathway.
- Monitor Disease Activity: Helps determine if conditions like lupus are flaring or in remission.
- Diagnose Hereditary Angioedema: Often associated with low C4 levels.
Clinical Significance
- Lupus (SLE): Low C4 levels are common in active lupus, particularly when the kidneys are affected, as the protein is consumed in the tissue inflammation process.
- Infections & Inflammation: Chronic infections or inflammatory bowel disease can alter C4 levels.
- Inherited Deficiency: A rare genetic inability to produce enough C4, which can predispose individuals to autoimmune diseases.
Preparation
- No fasting is needed for this test. You can book any available slot.
- Keep your doctor’s prescription or test request handy if you have one, and take regular medicines as your doctor has advised.
- Tell the sample collector if you take blood thinners, and wear a sleeve that rolls above the elbow.
How home sample collection works
- 1
Choose your tests
Add single tests or a package to the cart and check fasting needs.
- 2
Pick a collection slot
Half-hour slots from 30 minutes ahead, up to 10 days out. Pay online.
- 3
A sample collector visits
They confirm the visit with a one-time code, then take the sample.
- 4
Report in your account
The lab uploads the report and you are notified to download it.
Where we collect samples at home
Lab tests with home sample collection reach 70 Hyderabad pin codes today, across these areas:
- Kachiguda
- LB Nagar
- Ameerpet
- ECIL
- Jubilee Hills
- Neredmet
- Saidabad
- Sanathnagar
- Tolichowki
- Yousufguda
- Amberpet
- Khairatabad
- Kukatpally
- Manikonda
- Nizampet
- Secunderabad
- Tarnaka
- Uppal
- Vanasthalipuram
- Jeedimetla
- Mehdipatnam
- Musheerabad
- Nacharam
- Suchitra
- Trimulgherry
Coverage differs street to street and grows as professionals join. Check your pin code to see what reaches your address.
Frequently asked questions
How much does C4 Complement cost in Hyderabad?
C4 Complement costs ₹645 on Aish Health in Hyderabad, down from ₹750. There is no separate home collection fee; any GST or busy-hour charge is shown before you pay.
Do I need to fast before C4 Complement?
No, fasting is not needed for this test, so you can book any available slot.
When will I get the C4 Complement report?
The expected report time is 12 hours. The partner lab uploads the report as a PDF to your order and you are notified to download it.
What sample is collected for C4 Complement?
Serum sample is collected at your home by a sample collector.
Can I cancel a lab test booking?
Yes. Cancel before a sample collector accepts or more than 1 hour before the slot for a full refund. Within 1 hour of the slot there is no refund, and once the sample collector is on the way the booking can no longer be cancelled.
Can I book tests for a family member?
Yes. Add them as a family member in your account and choose them as the patient when booking, so the report is filed under their name.
Can I pay cash when the sample is collected?
No. Lab tests booked on the website or app are paid online when you book, by card, UPI or your Aish Health wallet.
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