Causes of Global Delay

Question 1

An 11-month-old boy presents with global developmental delay (4-5 months behind in all domains of development). He undergoes extensive investigation including cytogenetics (examination of the basic chromosomal number and structure), microarray, and MRI head scan, and screening tests of urine and plasma for inborn errors of metabolism. Statistically, what is the approximate likelihood of making a positive diagnosis after such testing?

Question 1Select one:

a.
25%

b.
90%

c.
10%

d.
50%

Answer 1

50%

Question 2

A 2 year old girl is brought for developmental assessment. She smiles responsively and is able to sit and reach for objects which she holds in a palmar grasp. She does not pass objects hand to hand. She cannot stand independently or crawl. She does not use any recognisable words and does not appear to understand simple phrases or communicate her wants. From the following list what is the most appropriate description of her developmental status?

Question 2Select one:

a.
Specific learning disorder

b.
Normal development for age

c.
Global developmental delay

d.
Autistic spectrum disorder

Answer 2

Global developmental delay