Test directory: Chromosome, Amniotic Fluid

Ordering Code8331
Test NameChromosome, Amniotic Fluid
AliasKaryotype, Amniotic Fluid
Preferred SpecimenAmniotic fluid, fetal urine OR cystic hygroma fluid
Preferred ContainerSterile plastic conical tube
Optimum Volume20-30 mL (15-20 mL for early amniocentesis)
Collection InstructionsDiscard 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 LabCorp. Request form is completed and accompanies specimen and miscellaneous slip to the laboratory.
Handling InstructionsIf prior NIPT studies have been performed, include copy of the report
Do NOT freeze.
Transport RequirementsOahu: Ambient
Airline: Ambient
Rejection CriteriaSpecimen found not to be amniotic fluid, Gross contamination with blood cells, Frozen specimen,
Containers with rubber stoppers (rubber is toxic to amniocytes)
Avail. StatNO
Analytic Time11 - 14 Days
MethodologyIn situ cell culturing of amniocytes to investigate numerical and/or structural chromosome abnormalities
Reference Lab Esoterix Genetic Laboratories, LLC

Reference range(s)

The reference ranges listed below are valid on this date of December 3, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Cells AnalyzedALLSee report.
Cells CountedALLSee report.
Cells KaryotypedALLSee report.
ColoniesALLSee report.
Cytogenetic DiagnosisALLSee report.
Cytogenetic InterpretationALLSee report.
Director Review:ALLSee report.
GTG Band Resolution AchievedALLSee report.
PDFALLSee report.
Specimen TypeALLSee report.