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Medical information Clinical review pending

Immunology Testing

C1 Esterase Inhibitor Protein Quantitation C1 Inhibitor Quantitative Test

This test measures the level of C1 esterase inhibitor protein in your blood, helping to diagnose disorders of the complement system, such as hereditary angioedema. Confirm with the laboratory before booking.

General information only: This page is not a diagnosis or personal medical advice. A qualified clinician should decide whether testing is appropriate and interpret results in context.

Review status: No completed medical review is recorded for this page.

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Counselor guidance included Confidential handling Kenya-wide coordination

At a glance

Plan your test

Sample
2 mL (0.5 mL minimum) serum collected in a Red Top tube (no additive). Please do not use SST gel barrier tubes. Serum must be separated within 1 hour of collection.
Results
Results are typically available the following Monday if the sample is collected by 9 am on Wednesday. Confirm exact turnaround time with the laboratory before booking.
Preparation
Overnight fasting is preferred. Confirm specific preparation requirements with the laboratory before booking.
Test priceKSh 5,148

Payment: M-Pesa and card options can be confirmed during booking.

Insurance & government schemes

Is this test covered for you?

We help you verify whether the C1 Esterase Inhibitor Protein Quantitation C1 Inhibitor Quantitative Test test can be claimed against your insurer, employer scheme or a Kenyan government health scheme — before you book. Coverage depends on your plan, clinical indication and your provider's rules; final approval always rests with them.

Talk to a claims advisor

Providers & schemes we can help you check

Government & public schemes

SHIF — Social Health Insurance Fund Linda Mama EduAfya NHIF (legacy cards)

Eligibility and benefits follow the current rules of the Social Health Authority (SHA) and applicable government programmes.

Private insurers & employer schemes

Jubilee Health AAR APA Britam CIC Madison Resolution Pioneer Minet Old Mutual GA Life Heritage + other licensed insurers

Names shown for identification only — listing does not imply partnership or guarantee of coverage.

Have these ready when we check

  • Insurer or scheme name & policy / member number
  • A clinician's request / prescription for the test
  • Pre-authorisation letter, if your plan requires one

Free coverage check

Ask us to verify your cover

Send your details and our claims team confirms what documents you need and whether pre-authorisation applies — usually the same working day.

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Used only to process your coverage check — see our Privacy Policy. Verification support is free and does not guarantee your provider will pay.

01

Start with fit

Is this the right test for you?

The best test starts with a clear clinical question. These are common reasons a clinician or family may consider this test.

  • ✓Unexplained recurrent swelling (angioedema)
  • ✓Abdominal pain
  • ✓Family history of hereditary angioedema (HAE)
  • ✓Recurrent infections
  • ✓Suspected complement system disorder
  • ✓Monitoring known C1 inhibitor deficiency
02

In plain language

What this test helps you understand

This test helps diagnose conditions related to the complement system, particularly C1 esterase inhibitor deficiency or dysfunction, which can lead to hereditary angioedema (HAE). It aids in identifying the cause of unexplained swelling or recurrent infections.
The C1 Esterase Inhibitor Protein Quantitation Test is a diagnostic tool used to measure the amount of C1 inhibitor protein in your blood. This protein is part of the complement system, a crucial component of your immune response. Abnormal levels of C1 inhibitor can indicate underlying health issues, particularly disorders affecting the complement system.

This test specifically quantifies the C1 esterase inhibitor protein present in a serum sample. It is often used when a healthcare provider suspects a condition related to complement system dysfunction, such as hereditary angioedema (HAE), a rare genetic disorder causing recurrent swelling.

Understanding the results of this test requires interpretation by a qualified healthcare professional in the context of your overall health and symptoms.
03

Medical review status

Clinical review pending

A completed medical review is not recorded for this page. No clinician has endorsed the information shown here. Please discuss testing decisions with a qualified healthcare professional.

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04

A simple process

What happens next?

You do not have to navigate the test alone. We help you move from question to next step.

1

Speak with us

We check the test and answer your questions before collection.

2

Give your sample

Choose home collection or a coordinated hub visit in Kenya. We explain whether this test uses a cheek swab or blood draw.

3

Understand your report

A counselor helps you understand the result and the next steps.

05

Choose your collection

Home collection or a lab visit

We will explain the sample, preparation, and next steps before anything is collected.

Home collection

Choose a coordinated visit at home or another convenient location. Our team confirms the appointment and sample requirements in advance.

Lab or hub visit

Prefer to visit a coordinated location? We can guide you to the right hub and explain what to expect when you arrive.

Ask about locations →
PreparationOvernight fasting is preferred. Confirm specific preparation requirements with the laboratory before booking.
Sample2 mL (0.5 mL minimum) serum collected in a Red Top tube (no additive). Please do not use SST gel barrier tubes. Serum must be separated within 1 hour of collection.
MethodologyConfirm methodology details with the laboratory before booking.
PrivacyYour sample and report are handled confidentially. Ask the team how your information is stored and shared.
This test measures the quantity of C1 inhibitor protein. It does not assess the functional activity of the protein. Results may be affected by certain medications or other medical conditions. Confirm with the laboratory before booking.
06

Read your report

What common result terms mean

PositiveA finding was identified. Your clinician or counselor will explain what it means for your care.
NegativeThe specific finding tested for was not identified. It does not rule out every possible cause.
VUSA variant was found, but current evidence is not enough to classify it. Your counselor can explain follow-up.
07

Questions people ask

Frequently asked questions

C1 esterase inhibitor is a protein in your blood that helps regulate the complement system, a part of your immune system. It helps prevent excessive inflammation and swelling.
This test is done to measure the level of C1 esterase inhibitor protein in your blood. It helps diagnose conditions like hereditary angioedema (HAE), which involves recurrent swelling.
Overnight fasting is preferred. Please confirm specific preparation instructions with the laboratory before your appointment.
A blood sample is drawn and sent to the laboratory. The serum (liquid part of the blood) is used for the test.
Results are typically available the following Monday if the sample is collected by 9 am on Wednesday. Confirm the exact turnaround time with the laboratory.
Your doctor will interpret the results based on your medical history and symptoms. Abnormal levels may indicate a complement system disorder. Discuss the results with your physician.
08

Collaboration

Open for partnership with hospitals, clinics, doctors & researchers

Whether you are referring patients, building a research programme or supporting students, we work as an extension of your team — with responsive communication and clear scientific standards.

Hospitals & clinics

Referral pathways, coordinated sample logistics and shared reporting that fits your clinical workflow.

Doctors & specialists

LOINC-coded reports, ACMG-based variant classification and a direct scientific line for complex cases.

Research institutions

Sanger sequencing, NGS panels and custom assays — with project design support, batch pricing and agreed turnaround commitments.

Students & academic projects

Discounted laboratory services for college, master's and PhD research projects — including proposal guidance and cost-effective batch testing.

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09

Trust & transparency

Sources, standards & how this page is maintained

Standards & references

  • ACMG/AMP technical standards for sequence variant interpretation
  • ClinGen curation and gene–disease validity frameworks where applicable
  • LOINC-coded reporting for interoperable results
  • ISO 9001:2015 quality management; ISO 15189 accreditation in progress

Page provenance

  • Last updated: September 27, 2026
  • Medical review: not yet completed
  • Written for patients & clinicians in Kenya; reviewed periodically against current guidance

Medical disclaimer: this page is general information, not a diagnosis or personal medical advice. Testing decisions and result interpretation should be made with a qualified healthcare professional.

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