Ventricular System and CSF Practice Questions

Question 1

The normal adult cerebrospinal fluid pressure range is:

Accepted Answer

6-12 mm Hg

Answer

1-2 mm Hg

Answer

15-30 mm Hg

Answer

730 mm Hg

Question 2

Which of the following is the MOST accurate statement about CSF?

Accepted Answer

Formed by the choroid plexus in the ventricles.

Answer

Normally contains no neutrophils

Answer

pH is less than that of plasma

Answer

Removal of CSF during dural tap can cause a headache due to the change in pressure.

Question 3

Which of the following most likely causes a communicating (nonobstructive) hydrocephalus?

Accepted Answer

Blockage of the arachnoid granulations

Answer

Tuberculous meningitis

Answer

Stenosis of the duct of Sylvius

Answer

Ependymoma of the fourth ventricle

Question 4

In tuberculous meningitis, what is NOT seen:

Accepted Answer

Increased CSF glucose

Answer

Turbidity of CSF

Answer

Increased lymphocytes

Answer

Decreased protein levels

Question 5

Which structure is associated with the diencephalon?

Accepted Answer

Third ventricle

Answer

Fourth ventricle

Answer

Cerebral aqueduct

Answer

Lateral ventricle

Question 6

A patient with advanced HIV presents with cryptococcal meningitis. Which CSF finding is most characteristic?

Accepted Answer

High opening pressure

Answer

High protein

Answer

Low glucose

Answer

Neutrophilic pleocytosis

Question 7

What are the typical contents of a meningocele sac?

Accepted Answer

Meninges and CSF

Answer

Spinal cord

Answer

Dura mater

Answer

Cauda equina

Question 8

What does the foramen of Monro connect?

Accepted Answer

Lateral ventricles to third ventricle

Answer

Subarachnoid space

Answer

Central canal

Answer

Third to fourth ventricle

Question 9

Hydrocephalus is best detected antenatally by :

Accepted Answer

Ultrasonography

Answer

X-ray abdomen

Answer

Amniocentesis

Answer

Clinical examination

Question 10

A 30-year-old female P2L2 had a forceps delivery 2 days back. There was injury to head of baby resulting in collection of blood in soft tissue between pericranium and flat bone of skull, limited by suture line. What is the probable diagnosis?

Accepted Answer

Cephalhaematoma

Answer

Subgaleal haemorrhage

Answer

Caput succedaneum

Answer

Intraventricular haemorrhage

Ventricular System and CSF — MCQs

Ventricular System and CSF — MCQs

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