Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose 47 XXX syndrome ?
    ### Response:
    How is 47 XXX syndrome diagnosed? 47 XXX syndrome may first be suspected based on the presence of certain developmental, behavioral or learning disabilities in an individual. The diagnosis can be confirmed with chromosomal analysis (karyotyping), which can be performed on a blood sample.
    