Delayed motor milestones / CK screening
Appears 1×
Teaching point — how the wording changes the answer
A 1-year-old with delayed walking and a similarly affected mother raises concern for a hereditary myopathy/muscular dystrophy; the best initial screening test for progressive muscle weakness or delayed motor milestones is creatine kinase (CK).
Q40
1-year-old with delayed walking and flat foot; mother similarly affected. Best test?
Key clue
Screen for myopathy with CK before EMG/biopsy
Show answer
Creatine kinase (CK)