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GTR Home > Tests > G-Banded Chromosome Analysis

Overview

Test name

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G-Banded Chromosome Analysis

Purpose of the test

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This is a clinical test intended for Help: Diagnosis, Recurrence, Risk Assessment

Condition

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Click Indication tab for more information.

How to order

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The requisition is found under the how to order URL. We are able to receive specimens 24 hours a day, 7 days a week. Please call the lab at 206-598-4488 for further information.
Order URL Help: http://www.pathology.washington.edu/patient-care/cytogenetics-ordering-and-shipping

Specimen source

Amniocytes
Amniotic fluid
Bone marrow
Buccal swab
Cell culture
Cerebrospinal fluid
Chorionic villi
Cord blood
Cystic hygroma fluid
Fetal blood
Fibroblasts
Fresh tissue
Peripheral (whole) blood
Product of conception (POC)
Skin

Methodology

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Cytogenetics
KKaryotyping
G-banding

Summary of what is tested

Click Methodology tab for more information.

Clinical utility

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Establish or confirm diagnosis

Citations

Clinical validity

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G-banded chromosome analysis will detect polyploidies, aneuploidies, large balanced alterations (i.e. reciprocal translocations, Robertsonian translocations, inversions, balanced insertions), and large unbalanced translocations, duplications and deletions.

Citations

Not provided

Testing strategy

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Consider reflex testing to cytogenomic microarray analysis when chromosome analysis is normal in a child being evaluated for a recognized aneuploidy syndrome. 000 The requisition is found under the how to order URL. We are able to receive specimens 24 hours a day, 7 days a week. Please call the lab at 206-598-4488 for further information.

Test services

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  • Clinical Testing/Confirmation of Mutations Identified Previously
  • Confirmation of research findings
  • Custom Balanced Chromosome Rearrangement Studies
  • Marker Chromosome Identification
  • Result interpretation
  • X-Chromosome Inactivation Studies
  • Custom Prenatal Testing

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.