Chromosome Analysis, Amniotic Fluid
- GTR Test IDHelpEach Test is a specific, orderable test from a particular laboratory, and is assigned a unique GTR accession number. The format is GTR00000001.1, with a leading prefix 'GTR' followed by 8 digits, a period, then 1 or more digits representing the version. When a laboratory updates a registered test, a new version number is assigned.: GTR000593807.4
- Last updated: 2023-07-14
- Test version history
Clinical testHelpIn the U.S., clinical tests must be performed under CLIA certification. When a lab uses the same methods for a test in both clinical and research settings, the test appears as two separate GTR records. for Congenital chromosomal disease
Offered by Institute for Genomic Medicine (IGM) Clinical Laboratory
Overview
Test name
HelpThe name the laboratory assigns the test. Used as the default title of the page specific to the test.Chromosome Analysis, Amniotic Fluid (Amnitoic fluid karyotype, Amniotic fluid karyotyping, Amnio chro)
This is a clinical test intended for HelpPurposes or indications for the test. Lab-provided.: Diagnosis
Click Indication tab for more information.
Submit a sample with a completed requisition form. Label sample and form with at least two patient identifying information, such as name and date of birth. If POC sample from pregnancy loss (non-viable pregnancy), please label sample and form with mother's ID.
Order URL HelpLink to the laboratory webpage with information about how to order this test. Please note that clicking on this link will open a new tab in your internet browser.: https://www.nationwidechildrens.org/specialties/laboratory-services
Specimen source
Methodology
HelpThe assay's major method category (biochemical, cytogenetic or molecular genetics); method category (i.e. enzyme assay, chromosome breakage studies, targeted mutation analysis); methodology (i.e. the name of the method used) and instruments used when performing this test.- Cytogenetics
- KKaryotyping
- G-banding
Not provided
Clinical validity
HelpHow consistently and accurately the test detects or predicts the intermediate or final outcomes of interest. Lab-provided.Not provided
Testing strategy
HelpThe lab's suggested sequence of ordering tests based on clinical scenarios. It may include information on: reflex testing including each test component, and scenarios which prompt additional components of testing; whether lab communicates interim results or automatically proceeds to further analyses; and if any components are performed in another laboratory.Reflex to microarray analysis available 000 Submit a sample with a completed requisition form. Label sample and form with at least two patient identifying information, such as name and date of birth. If POC sample from pregnancy loss (non-viable pregnancy), please label sample and form with mother's ID.
Test services
HelpLaboratory's order or catalog code for the test (used in the order requisition form).- NSGC, 2021National Society of Genetic Counselors Position Statement: Prenatal Cell-Free DNA Screening
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.