silica clotting time (sct)
Reproductive EndocrinologyBlood sampleResults 3-5 daysNo fasting
Silica Clotting Time (SCT)
Silica Clotting Time (SCT) is a coagulation test used to help screen for lupus anticoagulant, a type of antiphospholipid antibody.
Sample
Blood
Results
3-5 days
Fasting
Not required
Follow-up
Optional add-on
What this test detects
Silica Clotting Time (SCT)
Clot-based coagulation assay
Clotting time · seconds
When to get this test
Antiphospholipid screening
Helps screen for lupus anticoagulant as part of an antiphospholipid antibody work-up.
Recurrent pregnancy loss
Used in the evaluation of repeated miscarriage where a clotting cause is being investigated.
Unexplained clotting
Part of assessing unusual blood clots that may have an immune-related cause.
How to prepare
01
Tell the lab if you are taking blood thinners, as these can affect the result.
Common questions
What is this test screening for?
It helps detect lupus anticoagulant, an antiphospholipid antibody that can affect clotting. Confirmation usually needs more than one test.
Do medicines affect the result?
Yes. Blood-thinning medicines can change clotting times, so it is important to tell the lab what you are taking.