Free neurosurgery MCQ exam model for clinical students

Explanation:

• MRI brain → Correct because it provides superior soft tissue contrast.

• CT scan → Incorrect because it is useful in emergencies but less detailed.

• Skull X-ray → Incorrect because it is obsolete.

• EEG → Incorrect because it assesses electrical activity.

• Cerebral angiography → Incorrect because it evaluates vascular lesions.

Explanation:

• Epidural hematoma → Correct because transient recovery occurs before deterioration.

• Subdural hematoma → Incorrect because symptoms progress gradually.

• Intracerebral hemorrhage → Incorrect because it causes immediate deficits.

• Subarachnoid hemorrhage → Incorrect because it presents with sudden severe headache.

• Cerebral contusion → Incorrect because it causes progressive edema.

Explanation:

• Prevent neurological deterioration and preserve function → Correct because neurosurgery aims to protect neural tissue and function.

• Provide symptomatic relief only → Incorrect because definitive treatment is often required.

• Remove tissue for diagnosis → Incorrect because biopsy is only one aspect.

• Prolong hospital stay → Incorrect because early recovery is desired.

• Avoid medical treatment → Incorrect because surgery complements medical care.

Explanation:

• Head injury → Correct because traumatic brain injury frequently requires urgent surgical intervention.

• Brain tumor → Incorrect because most are elective surgeries.

• Spinal deformity → Incorrect because it is usually elective.

• Hydrocephalus → Incorrect because it is urgent but less common than trauma.

• Epilepsy → Incorrect because surgery is planned, not emergency.

Explanation:

• Infection → Correct because surgical site and intracranial infections are common risks.

• Seizures → Incorrect because they occur but less frequently.

• Bleeding → Incorrect because it is usually controlled intraoperatively.

• CSF leak → Incorrect because it is less common.

• Stroke → Incorrect because it is uncommon.

Explanation:

• Subdural hematoma → Correct because tearing of bridging veins is common in head injury.

• Epidural hematoma → Incorrect because it is classically associated with middle meningeal artery injury.

• Subarachnoid hemorrhage → Incorrect because it is often aneurysmal.

• Intracerebral hemorrhage → Incorrect because it is less common post-trauma.

• Intraventricular hemorrhage → Incorrect because it is rare.

Explanation:

• Aqueductal stenosis → Correct because it commonly obstructs CSF flow in children.

• Brain tumor → Incorrect because it is a secondary cause.

• Intraventricular hemorrhage → Incorrect because it is common in preterm neonates.

• Meningitis → Incorrect because it causes communicating hydrocephalus.

• Arnold–Chiari malformation → Incorrect because it is less common.

Explanation:

• Meningioma → Correct because it is the most common primary brain tumor in adults.

• Glioblastoma multiforme → Incorrect because it is the most common malignant tumor, not overall.

• Astrocytoma → Incorrect because it is less common.

• Medulloblastoma → Incorrect because it occurs in children.

• Ependymoma → Incorrect because it is uncommon.

Explanation:

• Nervous system → Correct because neurosurgery involves brain, spinal cord, and peripheral nerve surgery.

• Cardiovascular system → Incorrect because this is cardiothoracic surgery.

• Respiratory system → Incorrect because this is thoracic surgery.

• Musculoskeletal system → Incorrect because this is orthopedics.

• Endocrine system → Incorrect because this is endocrinology.

Explanation:

• Hydrocephalus → Correct because shunt diverts excess CSF.

• Brain abscess → Incorrect because it requires drainage.

• Raised intracranial pressure due to tumor → Incorrect because tumor removal is primary.

• Subarachnoid hemorrhage → Incorrect because temporary drainage is preferred.

• Headache → Incorrect because it is a symptom, not indication.