Constitutional karyotype - amniotic fluid - prenatal

Back to the list
Eurofins Biomnis code

CLA

Specialty

Cytogenetics


Clinical significance

Amniotic fluid-based chromosome analysis involves counting, identifying and studying the morphological characteristics of fetal chromosomes.This is indicated in: - mothers of 38 or over; - couples who have previously had an abnormal child; - one parent is known to be a carrier of some chromosomal abnormality; - fetal abnormality detected by ultrasound scan; - women with a positive Down syndrome serum screen result (a risk of 1/250 or higher); - for sex determination (for X-linked diseases). Other parameters can also be studied on amniotic fluid, e.g. AFP, acetylcholinesterase, viruses and molecular genetics.

Preanalytics
  • A tube specifically for this analysis : No
Further information

For sample traceability purposes, we invite you to contact the International Division before sending samples
ALWAYS attach the medical prescription, the clinical patient's history and the consent form signed by both the patient and the prescribing clinical

Specific equipment available
  • S9P: Envelopes orange for karyotypes PARIS

Methodology

Conventional cytogenetics: Culture + chromosome analysis

Turnaround time

10 to 14 days (depending on cells growth)


Testing Laboratory

Biomnis Ivry