OME - ID Brain inflammation Flashcards
DDx fever and HA?
- *Look for photo / phonophobia +/- NV
1. Meningitis
2. Encephalitis
3. Abscess
Most common type meningitis?
Bacterial
Types Meningitis?
- TB
- Lyme
- RMSF
- Cryptococcal
What to look for to point towards abscess?
- Focal neurologic deficit
What points to encephalitis?
- AMS (encephalopathy)
Viral encephalitis causes?
- West nile
- Equine
- HSV
* *Do not alter rx, only have to report to CDC
Rx encephalitis?
Supportive
Only viral encephalitis with Rx?
HSV - acyclovir
What to do before LP?
Look for signs elevated ICP (contraindications): "FAILS" Focal deficit (mass) AMS Immunosuppressed Lesion over spine Seizure
What happens if do LP with ICP?
Brain herniates through foramen magnum
Who is immunocompromised?
- Elderly
- Neonate
- Chemo
- Monoclonal Ig
What to do if LP unsafe?
- Non con CT - looking for mass
If LP is unsafe to do you give ABX?
Yes, LP then CT
IF LP safe, order of treatment?
- LP
2. CT
Signs bacterial LP?
- > 1000 poly WBCs
Empirical Rx all bacterial meningitis?
- Ceftriaxone
- Vancomycin
- Steroids
* Add amp if immunosuppressed
What points towards Lyme?
- Travel to connecticut
- Targetoid lesion
- Arthralgias
- Arrhythmias
- Ig
* Do not need to see tic
What points towards crypto?
- Aids
- Antigen
- Elevated Opening pressure
What points towards RMSF?
- Rash moving from arms to trunk
- Tick bites
- Camping
- Ig on CSF
What points to TB?
- Nights sweats
- Weight loss
- Hemoptysis
- Homeless / prison / endemic areas
What points to Syphillis?
- Chancer
2. Erythema multiforme (bullseyes lesionS)
Rx cryptococcal?
Amphoterecin
Rx RMSF / Lime
- Ceftriaxone
Rx TB?
"RIPE" Rifampin Isoniazid Pyramid Azole Ethambutol
Step if HIV+, AIDS, And Toxo Ig +?
- Treat toxo:
a. Pyrimethamine
b. Sulfadiazine - Rescan 6 weeks later
Next step mass and not Aids?
- Brain biopsy
Rx Brain abscess?
- Drain
2. Abx
What to think if hemorrhagic tab or “temporal lobe” and encephalitis?
HSV
How to diagnose HSV?
HSV PCR