sma Flashcards
1
Q
what are characteristics of type 1 sma?
A
onset less than 6 months
sit only w support
die within 2 years
2
Q
what are the characteristics of type 2 sma?
A
onset 6-18 months
sit independently until about 14
3
Q
what are the characteristics of type 3 sma?
A
onset > 18 months
walk independently
later onset =walking longer
4
Q
is sensation, cognition, and bowel/bladder intact with sma?
A
yes
5
Q
what is the pattern of weakness for sma?
A
proximal
legs more than arms
6
Q
what type of cell is affected in sma?
A
anterior horn cell
7
Q
is sma autosomal recessive or dominant? meaning what % chance a child will have it?
A
recessive
25%
