CSF Studies

Tests

Standard

• Tube 1: Gram stain and culture
• Tube 2: Protein and glucose
• Tube 3: Cell count w diff
• Tube 4: Hold

Additional

1. Cryptoccal ag
2. India ink
3. AFB PCR
4. RPR, VRDL
5. Fungal cx
6. viral cx
7. Herpes PCR
8. LDH
   1. >40 suggests bacterial meningitis
   2. <40 suggests viral

Correction

• Protein
  • For each 1000 RBC decrease protein value by 1mg/dl
• WBC
  • Actual WBC = Counted WBC - (RBCcsf X (WBCblood/RBC blood)

See Also

CT Before Lumbar Puncture

Source

7/2/09 PANI