02-14-2012, 03:14 AM
13. A 6-month-old girl is brought to the physician for a routine health maintenance examination.
She was born with a lumbosacral myelomeningocele which was successfully repaired at 2 days of
age. The anterior fontanelle is 6 x 8 cm and bulging, and the posterior fontanelle is 3 x 4 cm and
bulging. She has severe motor and sensory deficits involving both lower extremities. A head growth
chart shows the following values:
Age
Head circumference (cm)
Birth
34.2
1 month
36.6
2 months
38
4 months
44
6 months
47
Which of the following is the most likely cause of increased intracranial pressure?
A ) Acute cerebral edema
B ) Decreased absorption of cerebrospinal fluid
C ) Dilation of cerebral arteries
D ) Intracranial mass lesion
E ) Obstruction of lateral sinus
F ) Obstruction of superior vena cava
G ) Obstruction of cerebrospinal fluid flow
H ) Overproduction of cerebrospinal fluid
What is the cause of this hydrocephalus?
She was born with a lumbosacral myelomeningocele which was successfully repaired at 2 days of
age. The anterior fontanelle is 6 x 8 cm and bulging, and the posterior fontanelle is 3 x 4 cm and
bulging. She has severe motor and sensory deficits involving both lower extremities. A head growth
chart shows the following values:
Age
Head circumference (cm)
Birth
34.2
1 month
36.6
2 months
38
4 months
44
6 months
47
Which of the following is the most likely cause of increased intracranial pressure?
A ) Acute cerebral edema
B ) Decreased absorption of cerebrospinal fluid
C ) Dilation of cerebral arteries
D ) Intracranial mass lesion
E ) Obstruction of lateral sinus
F ) Obstruction of superior vena cava
G ) Obstruction of cerebrospinal fluid flow
H ) Overproduction of cerebrospinal fluid
What is the cause of this hydrocephalus?