Trisomy(s) Flashcards
Down syndrome
genetic disorder caused by the presence of a 21st chromosome
Risk factors for down syndrome
moms over 35, dads over 50
Characteristic features of down syndrome
slanted eyes, depressed nasal bridge
What other health problems are common
cardiac problems, hearing and visual impairment, intestinal malformations, low muscle tone, increased susceptibility to disease, sleep apnea, thyroid disease, hematologic problems
What are most cases caused by
nondisjunction (error in cell division)
What is the goal of therapeutic management
promote optimal growth, development, and function in the scope of the disease
What does treatment focus on
treatment focuses on symptoms and support
When is it diagnosed
prenatally or in the first few days of life
Laboratory and diagnostic tests
ultrasound, blood tests, amniocentesis, confirmed with chromosomal analysis after birth
Patau syndrome
genetic disorder caused by the presence of extra 13th chromosome
Edward’s syndrome
genetic disorder caused by the presence of extra 18th chromosome
Characteristics of Patau syndrome
microcephalic head, wide fontanels, severe hypotonia, intellectual disability, congenital heart defects
Characteristics of Edward’s syndrome
severe intellectual disability, webbing, hypoplasia of fingernails, clenched fists, short sternum, narrow hips, congenital heart defects
What type of trisomy is the most severe
Edward’s syndrome
What is nursing management like for trisomy 13 and 18
supportive