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Genetic Testing Laboratories

Nicklaus Children's Hospital, formerly Miami Children's Hospital's Miami Genetic Laboratories is a CAP-accredited referral laboratory, providing comprehensive molecular, biochemical and cytogenetic testing and consultative services under the leadership of a board-certified medical geneticist, cytogeneticist and biochemical geneticist.

The team at our genetic testing laboratories provides high-quality, state-of-the-art diagnostic testing with results provided in the shortest time possible. STAT services are offered for urgent cases.
Enhancing value, the medical team offers counseling related to patient care, based on lab results.

Hours of Operation

8 a.m. to 5 p.m. Monday-Friday


Cytogenetic Testing

Cytogenetic testing is offered for constitutional disorders and cancers, including leukemias and solid tumors.

Available cytogenetic tests include:
  • Chromosomes
  • FISH- Constitutional and neoplastic abnormalities
  • 2.7 M SNP chromosomal microarray

Molecular Genetic Testing

Molecular genetic testing is available for children requiring testing related to cystic fibrosis, fragile X and autism panel testing.
Available molecular genetic tests include:
  • Fragile X testing
  • Luminex 60 mutation panel for cystic fibrosis
  • Cystic fibrosis sequencing

Biochemical Genetic Testing

Biochemical genetic testing is available to support newborn screening, and diagnosis and ongoing treatment of metabolic disorders
Available biochemical genetic tests include:
  • Plasma amino acids
  • Urine organic acids
  • CSF amino acids
  • Carnitine plasma and urine
  • Acylcarnitine
  • Biotinidase
  • Lactate
  • Pyruvate
  • Homocysteine
  • Urine Succnylacetone

For more information about services offered at our genetic testing laboratories, please call Isabel de Leon or Cynthia Escalona at 305-662-8318. Fax: 305-669-6589


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