Muscular Dystrophy Quiz

Duchenne's Muscular Dystrophy primarily affects which gender?

• Females exclusively

• Both males and females equally

• Males almost exclusively

• It does not affect humans

At what age does Duchenne's Muscular Dystrophy typically begin?

• Between 10 and 12 years of age

• Between 1 and 3 years of age

• At birth

• During teenage years

How is Duchenne's Muscular Dystrophy diagnosed?

• Genetic testing

• X-ray imaging

• A muscle biopsy

• Blood tests

What is a common cause of death in individuals with Duchenne's Muscular Dystrophy?

• Accidents due to muscle weakness

• Sudden heart failure, respiratory failure, or infection

• Old age

• Kidney failure

What physical deformity is associated with the muscle weakness caused by walking.

• Hyperextension of the knees

• Scapular flare out or "winging" and lordosis

• Decreased muscle tone in the abdomen

• Elbow joint stiffness

At what age do children with Becker's Muscular Dystrophy normally start to walk?

• In their teens

• In early adulthood

• Into teens or early adulthood

• Before the age of 10

Which part of the body does Facioscapulohumeral Dystrophy initially affect?

• Legs and lower body

• Face, shoulders, and upper arms

• Hands and feet

• Spinal muscles

What is the estimated incidence of Juvenile Rheumatoid Arthritis (JRA) in the United States?

• 50-100 per 100,000 children

• 20-50 per 100,000 children

• 100-150 per 100,000 children

• 150-200 per 100,000 children

Which type of JRA is the most common?

• Systemic JRA

• Oligoarticular JRA

• Polyarticular JRA

• Pauciarticular arthritis

At what age does the onset of JRA typically peak?

• 6 weeks to 6 months

• 1 to 3 and 8 to 12 years

• 5 to 10 years

• 13 to 16 years