The parents of a two-year old boy mention to his pediatrician during a well-visit that over the past six weeks he has had increasing difficulty walking and maintaining his balance. On further questioning, the parents relate that their son always seems to be sick. On physical exam, the pediatrician notes dilated blood vessels in the eyes and the patient's parents state that he neither has problems sleeping nor any seasonal allergies. The serum levels of which substances would most help establish the diagnosis?
A. AFP (alpha-fetoprotein)
B. IgA
C. Glucocerebrosidase + Sphingomyelinase
D. CEA (carcinoembryonic antigen)
E. ADA (Adenosine Deaminase)
A. AFP (alpha-fetoprotein)
B. IgA
C. Glucocerebrosidase + Sphingomyelinase
D. CEA (carcinoembryonic antigen)
E. ADA (Adenosine Deaminase)