Screening & Testing
Double Marker Test
The Double Marker is a blood test that contributes information to a first-trimester screening assessment. It is one input among several.
Laboratory Contribution
What Is It?
A blood test used within screening.
The Double Marker is a laboratory blood test performed in the first trimester. Its results are used as one input into a first-trimester screening assessment rather than being read on their own.
Laboratory testing at the centre supports diagnosis and follow-up alongside imaging. Please carry your doctor's prescription or requisition when visiting.
Where It Fits
- 01
Blood sample as requested by your doctor
- 02
Laboratory analysis
- 03
Considered with the ultrasound assessment
- 04
Screening estimate discussed with your doctor
Reading a Screening Result
Screening estimates a chance. It does not diagnose or exclude a condition. A diagnostic test is a different kind of test, and your doctor can explain when one may be discussed.
What It Does Not Mean
A screening result is not a diagnosis, and a single laboratory value should not be interpreted in isolation. Your doctor considers it together with the rest of the assessment.
This page is general education. Your treating doctor can explain what your own examination and report mean for you.
Appointment Notes
Questions you may want to ask
- Why has this test been advised for me?
- How is it considered alongside my scan?
- What would the result change about my care?
- Do I need to do anything before the sample is taken?
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Have a question about your examination?
Our team can help you understand how to proceed, or arrange an appointment at the centre.
For medical concerns or interpretation of individual findings, please speak directly with your doctor or healthcare provider.