Lec 24: SGD: Altered Sensorium Flashcards
ID: This is the clinical hallmark of meningeal irritation.
nuchal rigidity
Which is not included in the classic triad of CNS infections.
A. fever B. headache C. nuchal rigidity D. papilledema E. B & D
D. papilledema
Enumerate the requirements for arousal.
intact one cerebral hemisphere
intact reticular activating system
This CNS infection is typically accompanied by erythematous maculopapular rashes.
A. TB meningitis B. meningococcemia. C. viral meningoencephalitis D. HSV encephalitis E. NOTA
B. meningococcemia
T/F: The presence of altered sensorium in suspected CNS infection suggests possible meningitis.
F
It is more suggestive of meningoencephalitis.
ID: Papilledema is due to
increased ICP
Holocranial headaches may arise from
A. compression of meninges B. compression of venous sinuses C. increased intracranial pressure D. B & C only E. AOTA
E. AOTA
ID: Left sided weakness is most likely due to
right sided cortical lesion
What is the preferred imaging modality in suspected CNS infections?
A. non contrast CT scan B. contrast CT scan C. MRI D. PET-glucose uptake E. NOTA
C. MRI (according to Harrison’s)
But in the 2017 trans, contrast CT scan is the preferred choice.
ID: This is the most common cause of meningitis in adults.
S. pneumoniae
ID: focal, suppurative infection within the brain parenchyma, typically surrounded by a vascularized capsule
brain abscess
ID: This is the term for a nonencapsulated brain abscess.
cerebritis
True of the etiology of brain abscess EXCEPT
A. direct spread from contiguous sites B. following head trauma C. lymphatic spread from distant infection D. iatrogenic at times E. NOTA
C.
most commonly hematogenous
Enumerate the classic triad of BRAIN ABSCESS.
headache
fever
focal neurologic deficit
T/F: MRI is superior to CT in identifying early abscesses.
T
