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Medical information Clinical review pending

Cardiology

Antithrombin Activity Functional Test

Assess your risk for blood clotting disorders with the Antithrombin Activity Functional Test. This test measures antithrombin levels, crucial for regulating blood coagulation. 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
3 mL of whole blood collected in a blue top (sodium citrate) tube.
Results
Confirm with the laboratory before booking.
Preparation
Overnight fasting is preferred. Discontinue heparin for 1 day and oral anticoagulants for 7 days before the test, if possible. Consult your doctor before stopping any medication. A completed Coagulation Requisition Form (Form 15) is required.
Test priceKSh 8,000

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 Antithrombin Activity Functional 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.

  • ✓Personal or family history of thromboembolic disorders
  • ✓Unexplained blood clots
  • ✓Evaluation before starting anticoagulant therapy
  • ✓Monitoring anticoagulant therapy effectiveness
  • ✓Symptoms suggestive of deep vein thrombosis or pulmonary embolism
02

In plain language

What this test helps you understand

This test helps evaluate the functional activity of antithrombin, a natural anticoagulant. It is used to assess the risk of developing blood clots (thromboembolic disorders) and to monitor anticoagulant therapy.
The Antithrombin Activity Functional Test is a diagnostic tool used to evaluate the function of antithrombin, a protein in the blood that helps regulate blood coagulation. Measuring antithrombin activity helps healthcare providers assess a patient’s risk for thromboembolic disorders, such as deep vein thrombosis and pulmonary embolism. Low levels or dysfunctional antithrombin can indicate an increased risk for clotting disorders. This test is essential for individuals with a history of thromboembolic events or those undergoing evaluation for anticoagulant therapy. Early detection of potential clotting disorders can guide treatment options and management of anticoagulation therapy, leading to informed decisions regarding lifestyle and health management to prevent serious complications.
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.

Meet the DNA Labs Kenya medical team →
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. Discontinue heparin for 1 day and oral anticoagulants for 7 days before the test, if possible. Consult your doctor before stopping any medication. A completed Coagulation Requisition Form (Form 15) is required.
Sample3 mL of whole blood collected in a blue top (sodium citrate) tube.
MethodologyFunctional assay measuring the activity of antithrombin in the plasma.
PrivacyYour sample and report are handled confidentially. Ask the team how your information is stored and shared.
Test results can be affected by certain medications (like heparin and oral anticoagulants) and other medical conditions. Discuss potential limitations with your healthcare provider.
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

Antithrombin is a protein naturally found in your blood that helps prevent blood clots from forming.
This test helps assess your risk of developing blood clots (thromboembolic disorders) and guides treatment decisions.
Overnight fasting is preferred. You may need to temporarily stop certain medications like heparin or oral anticoagulants. Please consult your doctor before making any changes to your medication.
A blood sample is drawn and collected in a specific blue-top tube.
Turnaround time varies. Please confirm the expected timeframe with the laboratory before booking.
Your doctor will interpret the results in the context of your medical history and symptoms. Low levels may indicate an increased risk of clotting.
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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