Double Test

384,000đ

. The Double Test is a prenatal screening test typically performed during the first trimester of pregnancy, usually between 11 and 14 weeks.
. It involves measuring two key biomarkers in the mother's blood: Pregnancy-Associated Plasma Protein A (PAPP-A) and free β-hCG. These markers, when combined with the mother's age and other factors, help assess the risk of chromosomal abnormalities such as Down syndrome (Trisomy 21) and Edwards syndrome (Trisomy 18).
. The test does not diagnose these conditions but provides risk assessment, identifying pregnancies that may require further diagnostic testing like amniocentesis or chorionic villus sampling (CVS). It is often used in conjunction with other screening tests, such as the nuchal translucency (NT) ultrasound and crown-rump length (CRL) for a more comprehensive risk evaluation.

  • Obstetric & Gynecology
Double Test

Patient Instructions:
. The gestational age should be 11 - 14 weeks of age.
. Please provide the full information required on the ultrasound card and fill in the TOF of Diag.
. You will need to stop dietary supplements containing biotin (Vitamin B7), commonly found in hair, skin, and nail supplements, and multivitamins, at least 8 hours before sample collection. However, it is highly recommended that patients taking massive biotin doses stop for 72 hours.
Sample Type:
Serum
Result Time:

3:20 PM same day

Storage & Transportation:
-
Cutoff Times:

9:00 AM Monday – Saturday

30 minutes required for samples arrived at Cao Thang till receive by Laboratory

Biomakers
  • 1. Free β-hCG
  • 2. PAPP-A

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