Dual Marker Test (First Trimester)

What is the Dual Marker Test (First Trimester)?

Dual Marker Test (First Trimester) includes Free β-hCG, Free β-hCG (MoM), PAPP-A, PAPP-A (MoM), Risk — Trisomy 21 (Down syndrome) and additional measurements listed below. The listed sample is Blood (Serum). The parameter table provides the available units and method details. Discuss the measurements with your clinician in the context of the investigations requested.

What does the Dual Marker Test (First Trimester) measure?

6 parameters. Expand a group to see the measurements, units and available method details.

The reference interval printed on your actual laboratory report governs interpretation. Intervals can vary by laboratory, method, age, sex and pregnancy. Methods can also vary by processing laboratory.

Dual Marker Test (First Trimester): sample & preparation

Sample: Blood. Fasting: Not required.

• You do not need to fast. This test is done between 11 and 13 weeks 6 days of pregnancy and must be combined with your nuchal translucency ultrasound scan; tell the laboratory your exact gestational age and weight.

Frequently asked questions