Chromosomal Karyotyping, Amniotic Fluid


See Also Chromosomal Karyotyping, Peripheral Blood, Down’s Syndrome
Neural Tube Defect & Trisomy 18 Risk, Triple and Quadruple Screens,
and Trisomies 13, 18 & 21


The test is used to confirm or rule out foetal chromosomal aneuploidy (chromosome 13, 18 and 21 trisomy pregnancies) after the reporting of a high-risk pregnancy using screening tests such as the triple or quadruple screens and ultrasound scans. Other chromosome related disorders can also be identified including X/Y chromosome disorders.

Sample Type, Quantity & Conditions

10 ml Amniotic Fluid Room Temperature

Special Precautions

Discard first 2 mL of fluid aspirated to avoid maternal cell contamination. Specimen is collected in a 20 mL sterile syringe and transferred aseptically to sterile tubes to be transported to the lab. Storage Instructions: Maintain specimen at room temperature

Normal Range

By Report

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