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Diagnosis of Bacterial Brain Abscess and Anaerobic Infections

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Diagnosis of Bacterial Brain Abscess and Anaerobic Infections

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Questions and Answers

What is the early stage of brain abscess characterized by?

Presence of pus encapsulated by a membrane

Increased blood vessel permeability without angiogenesis (correct)

Localized inflammatory changes in the parenchyma

Formation of a vascularized membrane

Which of the following is not mentioned as a predominant bacterial isolate in brain abscesses?

Streptococcus intermedius

Neisseria meningitides (correct)

Pseudomonas species

Streptococcus pneumoniae

What is the fluid that flows in the ventricles within the brain and around the surface of the brain and spinal cord called?

Pus

Serum

Cerebrospinal fluid (correct)

Plasma

Which bacterial species is not listed as a cause of bacterial abscess in the text?

Neisseria gonorrhoeae Signup and view all the answers

What is the condition defined by an area of parenchymal infection containing pus encapsulated by a vascularized membrane?

Brain abscess Signup and view all the answers

Which type of infection has characterized by increased blood vessel permeability without angiogenesis?

Pyogenic infection Signup and view all the answers

What is the primary function of cerebrospinal fluid (CSF)?

To act as a hydraulic shock absorber and regulate intracranial pressure Signup and view all the answers

Which of the following is NOT a common cause of meningitis?

Mycobacterium tuberculosis Signup and view all the answers

What is the most urgent diagnostic issue in meningitis?

Differentiating acute purulent bacterial meningitis from other types Signup and view all the answers

Which of the following specimens is NOT recommended for the diagnosis of bacterial meningitis?

Urine sample Signup and view all the answers

What is the recommended technique for preparing smears from cerebrospinal fluid (CSF)?

Cytospin centrifugation Signup and view all the answers

What staining technique is recommended for examining smears of cerebrospinal fluid (CSF)?

Gram stain Signup and view all the answers