Is Generation Sequence Test Essential While Having Symptoms Of SMA?

Hi sir my daughter is having problem in standing up without support and have balance problems in walking. I consulted a neurologist and he have done some blood test (cpk 168 was d result) so he asked to do a electro mayo gram the results stated that she have some symptoms of sma . He recommends to do one more test it is next generation sequence test . But it cost 25000. about my daughter she is now6.5 year old . She is smart and she did her milestone like turning back sitting and scrawling at correct tym . But her walking milestone stone was delayed wen she was 2.3 only she learned to walk . It was little shaky walk. Now she is walking without good shape . It s shaking both sides wile she walk and will fall easily . Her bone is little more flexibile due to d muscle tone . I want to know if Der is any treatment ment for sma . Or is it sma or something else and is d price for the genetic test 25000 . Pls help I can provide the details Thanks