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What is a LUPUS ANTICOAGULANT (LAC) PANEL?

The Lupus Anticoagulant (LAC) Panel is a specialized blood test used to detect lupus anticoagulants, which are abnormal antibodies that interfere with normal blood clotting. Despite their name, these antibodies are not directly linked to lupus alone but can occur in various autoimmune or clotting disorders. The test is performed to evaluate unexplained blood clots, recurrent miscarriages, or prolonged clotting times, helping doctors diagnose antiphospholipid syndrome and guide appropriate treatment to reduce clotting risks.

Additional Information

Also known as/ Other names: Lupus Anticoagulant Profile, LAC Screening Panel, Lupus Anticoagulant Testing Panel, Antiphospholipid Coagulation Panel
Parameters: 3
Recommended for: M/F/Others
Sample Type: Blood
Patient Preparation: Overnight fasting is preferred.
Reports: 2 days

FAQs

Why is the LAC panel done?

Doctors order it to investigate unexplained blood clots, recurrent miscarriages, or prolonged clotting times, helping diagnose antiphospholipid syndrome.

Does a positive LAC test mean lupus?

Not necessarily. Lupus anticoagulants can occur in lupus, but also in other autoimmune or clotting disorders.

What conditions are linked to LAC?

It is strongly associated with antiphospholipid syndrome, recurrent pregnancy loss, and increased risk of venous or arterial thrombosis.

What symptoms prompt doctors to order this test?

Unexplained clotting, strokes at a young age, or recurrent miscarriages often lead to ordering the LAC panel.

Can the test confirm antiphospholipid syndrome alone?

No, it is part of a panel of tests including anticardiolipin and anti-beta2 glycoprotein I antibodies.

Can children undergo the LAC panel?

Yes, though rare in children, the test can be performed safely when clinically indicated.

Does pregnancy affect test results?

Pregnancy can influence clotting factors, so results must be interpreted carefully by specialists.

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