Description
Why It’s Done:
The Quad Marker Test is used as a screening tool, not a diagnostic test, to evaluate the risk of certain conditions in the developing baby, such as:
• Down syndrome (Trisomy 21)
• Trisomy 18 (Edwards syndrome)
• Neural tube defects like spina bifida
• Abdominal wall defects
It helps identify pregnancies at higher risk and may be followed up with diagnostic tests like amniocentesis or detailed ultrasound.
Preparation:
• No fasting or special preparation is required.
• The test involves a simple blood draw from the mother’s arm.
• Inform your doctor of:
o Your exact gestational age (based on ultrasound or last menstrual period)
o Any existing health conditions or medications you are taking
o Whether you are carrying more than one baby
Accurate results depend on correct information about the mother’s age, weight, ethnicity, and gestational age.
