By: Macie Huntley
What other names are there for this disorder?
What causes the disorder? & What chromosome is affected?
Down Syndrome is caused by a random error in cell division also known as nondisjunction. This random error results in a extra copy of chromosome 21.
Are there prenatal tests for this disorder?
Down Syndrome is diagnosed before (prenatally) and after birth (postnatally). During pregnancy, there are two types of tests that can be preformed to look for Down Syndrome- screening test and a diagnostic test. Screening tests look to see what the risk of your baby having Down Syndrome is. If the screening tests show a high risk a diagnostic test can then be performed. The two main tests for a diagnosis are amniocentesis and chorionic villus sampling.
What are the symptoms?
There are many physical and intellectual symptoms with Down Syndrome. Some physical symptoms are:
- decreased muscle tone
- flattened face/nose
- small head, ears and mouth
- eyes slanting up
- wide, short hand with small finger
Other intellectual symptoms:
- impulsive behavior
- speech problems
- small attention span
- slow learning
What population is affected?
Can anyone be a candidate for this disorder?
How is Down Syndrome inherited?
What kind of medical assistance will the affected child need?
Will more assistance be needed as the child gets older?
What is the long-term outlook for the child?
Are there any treatments or cures?
Could Down Syndrome have been prevented?
Can someone affected with Down Syndrome have children? & Will those children be affected?
What is the current research status on Down Syndrome?
Is there a cure/treatment coming soon?
- Trisomy 21- an extra copy of chromosome 21 in every cell
- Mosaicism- an extra chromosome in in some but not all cell's
- Translocation- only an extra part of chromosome 21