Trombo Sensor

Trombo Sensor is a buccal-swab genetic test showing whether you carry inherited variants associated with increased blood-clotting tendency (thrombosis). It indicates predisposition, not whether you will develop thrombosis. It is most useful with family thrombosis history; the testing decision is best made with a doctor.

Who the test is for

• people whose parent or sibling had thrombosis or pulmonary embolism, particularly young or without a clear cause;
• people with known inherited thrombosis predisposition in the family;
• people who themselves had thrombosis when a doctor considers genetic investigation useful;
• women with family thrombosis history planning hormonal contraception, pregnancy or hormonal treatment, when a gynaecologist considers results could change the method or clot protection.

Routine testing before contraceptive pills is not recommended, either for all women with family thrombosis history or for people without it. A gynaecologist assesses risk using personal and family medical history.

What the test detects

Blood clotting balances substances promoting clot formation against those preventing it. Some inherited variants shift the balance towards clotting. The best known are factor V Leiden and the prothrombin gene variant. They do not “damage” clot protection but make clotting somewhat more active.

According to its description, Trombo Sensor analyses selected genetic variants associated with inherited thrombosis risk. Request the exact gene and variant list before testing. Some inherited disorders, such as antithrombin, protein C or protein S deficiency, are usually established with blood tests, not this genetic test.

The test and preparation

The sample is a buccal swab: a stick is rubbed several times inside the cheek. Collection takes a few minutes and is painless. For at least 30 minutes beforehand, do not eat, drink anything except water, smoke or chew gum.

Anticoagulant medicines, pregnancy and recent thrombosis do not affect the genetic result; testing is performed only once.

What your result means

• One risk variant: thrombosis risk is above average, but most carriers never develop thrombosis. A doctor assesses it alongside contraception, pregnancy, surgery, prolonged immobility, obesity and smoking.
• Two variants or their combination: risk is higher. A haematologist advises on risky situations, such as after surgery or in pregnancy.
• No risk variants: does not rule out thrombosis. Most thromboses have other causes and testing does not cover all inherited disorders.

A doctor interprets results; the result alone is not grounds for anticoagulant medicines. Never start or stop them yourself. Free genetic counselling is available.

Swelling, pain and redness of one leg, sudden breathlessness, chest pain or coughing blood require emergency care: call 194 or 112. Genetic testing does not help then; a doctor may request D-dimer and imaging.

How to arrange testing

No referral or appointment is needed: a nurse takes the swab at any branch (listed under Contact). Prices for all tests and panels are available in the price list.

Frequently asked questions

Do I need testing before contraceptive pills?

Only if a doctor considers it appropriate. Testing is not routine even for all women with family thrombosis history. The decision depends on the relative’s disease, your personal risk and whether results would change contraception choice or clot protection.

Will I develop thrombosis if I carry a risk variant?

Not necessarily. Most carriers never develop it. Results help a doctor assess protective measures in risky situations, such as after surgery.

Is this the same as D-dimer testing?

No. D-dimer shows current clot breakdown and is tested for suspected thrombosis. Genetic testing shows permanent inherited predisposition.

How can I reduce thrombosis risk?

Keep active, stand and stretch periodically on long journeys and drink enough fluids. Do not smoke and maintain a healthy weight. Before surgery or during pregnancy, tell your doctor about family thrombosis history.