Podcast 556:  CSF - What is it good for?

Podcast 556: CSF - What is it good for?

Contributor: Eric Miller, MD

Educational Pearls:

  • A cell count is performed on tubes 1 and 4 to account for changes that may occur from blood entering the first sample from the needle insertion
  • Tube 2 and 3 are usually used for the other studies like protein levels, glucose levels and gram staining
  • Protein levels are often elevated in bacterial meningitis but can be helpful in diagnosis conditions like multiple sclerosis
  • Glucose levels are typically low in bacterial meningitis due to the use of glucose by bacteria
  • Cell counts above 3-5 cells are typically abnormal, but cell counts can vary widely depending on the type of meningitis (viral vs. bacterial) and how long the infection has been present.
  • Cell type and differential can indicate viral vs. bacterial meningitis
    • Neutrophils are more associated with bacterial causes
    • Lymphocytes are more associated with viral etiologies
  • CSF cultures are used to identify the cause of bacterial meningitis but can take days to result.
  • A gram stain can help determine if any bacteria are present as well as cell types present.

References

  1. Jain, R. Chang, WW. Emergency Department Approach to the Patient with Suspected Central Nervous System Infection. Emerg Med Clin North Am. 2018 Nov;36(4):711-722. doi: 10.1016/j.emc.2018.06.004.

Summarized by Jackson Roos, MS3 | Edited by Erik Verzemnieks, MD



Episoder(1146)

Podcast # 367: Digital Necrosis after Epinephrine Drip

Podcast # 367: Digital Necrosis after Epinephrine Drip

Podcast # 367: Digital Necrosis after Epinephrine Drip Author: Jared Scott, MD. Educational Pearls: Make sure to monitor for limb ischemia in all patients on vasopressors Good reminder that vasop...

17 Aug 20184min

Podcast # 366: Ehlers Danlos

Podcast # 366: Ehlers Danlos

Podcast # 366: Ehlers Danlos Author: Gretchen Hinson, MD. Educational Pearls: Heritable mutation in collagen synthesis and expression commonly resulting in joint hyperextension and skin elasticity....

15 Aug 20184min

Podcast # 365: Renal Trigger Point Injections

Podcast # 365: Renal Trigger Point Injections

Author: Erik Verzemnieks, MD Educational Pearls: Single study in Japan demonstrated possible effectiveness of renal colic trigger point Patients had injection at the area of maximal tenderness on...

13 Aug 20181min

Podcast # 364: Other causes of ST elevation

Podcast # 364: Other causes of ST elevation

Author: Peter Bakes, MD Educational Pearls: Pericarditis, LBBB, LVH and left ventricular aneurysms can all present with ST elevation. Ventricular aneurysm will present days after a cardiac event ...

10 Aug 20186min

Podcast # 363:  Ketamine for Alcohol Withdrawal

Podcast # 363: Ketamine for Alcohol Withdrawal

Educational Pearls: Recent study has shown adjunctive ketamine can be useful in setting of alcohol withdrawal. Ketamine was associated with a decrease in the amount of benzodiazepines needed, lik...

8 Aug 20182min

Podcast # 362: Giant Hogweed

Podcast # 362: Giant Hogweed

Author: John Winkler, MD Educational Pearls: Tall flowering plant with phototoxic sap Direct skin contact with the sap can cause the skin to become photosensitive Severe blisters and even burns...

6 Aug 20182min

Podcast # 361: Vertiginous Dizziness

Podcast # 361: Vertiginous Dizziness

Author: Peter Bakes, MD Educational Pearls: Important to find out if patients mean dysequilibrium, lightheadedness, or vertigo when patients say they are "dizzy." Differentiate central vs. periph...

3 Aug 20186min

Podcast # 360: Epidural Abscess Screening

Podcast # 360: Epidural Abscess Screening

Author: Dylan Luyten, MD. Educational Pearls:   Dangerous causes of back pain: AAA, cauda equina syndrome, epidural abscess. Young person with back pain needs to be evaluated for injection drug use...

2 Aug 20184min

Populært innen Vitenskap

fastlegen
rekommandert
tingenes-tilstand
jss
rss-rekommandert
liberal-halvtime
villmarksliv
forskningno
sinnsyn
fjellsportpodden
rss-paradigmepodden
nevropodden
rss-nysgjerrige-norge
tidlose-historier
vett-og-vitenskap-med-gaute-einevoll
diagnose
smart-forklart
pod-britannia
dekodet-2
hva-er-greia-med