The double marker test, typically conducted in the first trimester (usually between 11 to 14 weeks), is important for several reasons:
Screening for Down Syndrome: The test measures specific proteins (PAPP-A and free β-hCG) in the mother’s blood to assess the risk of chromosomal abnormalities, particularly Down syndrome (trisomy 21).
Assessment of Other Anomalies: Besides Down syndrome, the test can also help identify the risk of other conditions, like trisomy 18.
Early Detection: Identifying risks early allows for further diagnostic testing (like amniocentesis or chorionic villus sampling) if necessary, enabling informed decision-making.
Monitoring Fetal Health: Abnormal results can indicate potential issues that may require closer monitoring throughout the pregnancy.
Peace of Mind: For many expectant parents, knowing their risk can provide reassurance or allow for early planning and intervention if needed.
Keywords
free β-hCG
Fetal Health
Down Syndrome
early planning
11 to 14 weeks
Early Detection
Other Anomalies
several reasons
first trimester
potential issues
Abnormal results
other conditions
closer monitoring
specific proteins
diagnostic testing
double marker test
many expectant parents
informed decision-making
chromosomal abnormalities
chorionic villus sampling
