GED Science TestLife ScienceMedium
A patient arrives at the emergency room with a high fever, severe headache, and a stiff neck. A lumbar puncture is performed, and the cerebrospinal fluid (CSF) analysis reveals a high white blood cell count, low glucose, and elevated protein levels. Which of the following conditions is most likely indicated by these findings?
- AStroke
- BAlzheimer's Disease
- CMultiple Sclerosis
- DBacterial Meningitis
Show answer & explanationAnswer & explanation
Correct answer: D. Bacterial Meningitis
The combination of high white blood cell count, low glucose, and elevated protein in cerebrospinal fluid (CSF) is a classic indicator of bacterial meningitis. Bacterial infections consume glucose and produce proteins, leading to these characteristic CSF abnormalities.
Why the other options are wrong
- A. A stroke is caused by interrupted blood flow to the brain and would not typically present with these specific CSF abnormalities.
- B. Alzheimer's Disease is a neurodegenerative disorder with different CSF markers, primarily amyloid-beta and tau proteins.
- C. Multiple Sclerosis is an autoimmune disease affecting the brain and spinal cord, not typically presenting with these CSF findings.
Bacterial Meningitis CSF
Bacterial meningitis is an infection of the meninges (membranes surrounding the brain and spinal cord). Cerebrospinal fluid (CSF) analysis is crucial for diagnosis.
- High white blood cell count (predominantly neutrophils)
- Low glucose levels (bacteria consume glucose)
- Elevated protein levels (inflammation and bacterial byproducts)
Memory trick: CSF clues: High WBC, Low Glucose, High Protein = Bad Bug!