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 #351: Indications for AICD

Podcast #351: Indications for AICD

Author: Pete Bakes, MD Educational Pearls: AICD: Automated Implantable Cardioverter-Defibrillator. Can be placed for secondary prevention of cardiac arrest (i.e. history of cardiac arrest not fr...

11 Jul 20184min

Podcast # 350: Pressors and Ischemia

Podcast # 350: Pressors and Ischemia

Author: Nick Hatch, MD. Educational Pearls: A common concern using vasopressors is the risk of digital and mesenteric ischemia. The absolute risk of digital ischemia and/or mesenteric ischemia is...

9 Jul 20183min

Podcast # 349: Fat Emboli

Podcast # 349: Fat Emboli

Author: Sue Chilton, MD Educational Pearls: Triad of fat emboli syndrome is a petechial rash, AMS, and respiratory distress. Petechiae usually start in the axilla. 90% of patients with long bon...

4 Jul 20183min

Podcast # 348: Steakhouse Syndrome

Podcast # 348: Steakhouse Syndrome

Author: Don Stader, MD Educational Pearls: Steakhouse syndrome is an impacted esophageal food bolus. Occurs because they have an esophageal stricture (schatzki ring, scarring, esophagitis). Cla...

2 Jul 20183min

Podcast # 347: Fasting and Procedural Sedation

Podcast # 347: Fasting and Procedural Sedation

Author: Sam Killian, MD Educational Pearls: Recent study examining fasting and adverse events during procedural sedation found no association between fasting duration and any type of adverse event....

29 Jun 20183min

Podcast # 346: Pediatric DKA

Podcast # 346: Pediatric DKA

Author: Chris Holmes, MD Educational Pearls: There is a risk of cerebral edema in pediatrics with DKA if over resuscitated. Recent study comparing normal saline vs. ½ normal saline showed no diff...

27 Jun 20184min

Podcast # 345: Epidural Abscess

Podcast # 345: Epidural Abscess

Author: Sue Chilton, MD Educational Pearls: IV drug use and spinal procedures are major risk factors. Classic triad of back pain, focal neurological deficit and fever. However, presence of fever ...

25 Jun 20184min

Podcast # 344: Foley troubleshooting

Podcast # 344: Foley troubleshooting

Author: Aaron Lessen, MD. Educational Pearls: When foley is stuck, balloon may not have deflated. Make sure balloon is not in the urethra, which can block drainage. Cut off the port as it may b...

22 Jun 20183min

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