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



Avsnitt(1150)

Podcast #213: Oats and Potatoes

Podcast #213: Oats and Potatoes

Author: Michael Hunt, M.D. Educational Pearls: Oats have been shown to lower LDL. Oat bran is the most effective way to consume oats to lower LDL. A Swedish study of 69,000 people who ate at least 3 ...

3 Juni 20172min

Podcast #212: Knights Who Say Pessary

Podcast #212: Knights Who Say Pessary

Author: Jared Scott, M.D. Educational Pearls: A pessary is a device inserted into the vagina for medical purposes. Examples include birth control and mechanical support of the pelvic structures. In o...

1 Juni 20173min

Podcast #211: E-cigarettes

Podcast #211: E-cigarettes

Author: Michael Hunt, M.D. Educational Pearls: Children under age of 6 are at greatest risk of accidental nicotine overdose from ingestion. Biphasic presentation: Hyperadrenergic = nausea, vomiting...

31 Maj 20173min

Podcast #210: Bear Mauling

Podcast #210: Bear Mauling

Author: Jared Scott M.D. Educational Pearls: Bear mauling is not a common issue in the ED. The Ursus americanus (black bear) is the most common in Colorado, but Ursus arctos horribilis (grizzly bear)...

28 Maj 20174min

Podcast #209: Rabbit Done Died

Podcast #209: Rabbit Done Died

Author: Sam Killian, M.D. Educational Pearls: "The Rabbit Has Died" is a lesser used phrase to denote finding out one is pregnant. During a test used in the 1930s, the "Rabbit's Test," a rabbit was i...

26 Maj 20176min

Podcast #208: Vocal Cord Dysfunction

Podcast #208: Vocal Cord Dysfunction

Author: Martin O'Bryan M.D. Educational Pearls: Vocal cord dysfunction can mimic other causes of stridor, such as asthma and upper airway obstruction. Patients are often very anxious because of the d...

24 Maj 20174min

Podcast #207: Boxer's Fracture

Podcast #207: Boxer's Fracture

Author: Sam Killian, M.D. Educational Pearls: Defined as fracture of neck (distal segment) of 5th metacarpal. Intrinsic muscles of hand pull segment to palmar aspect of hand. 30 degrees of angulation...

22 Maj 20174min

Podcast #206: Urethral Injuries

Podcast #206: Urethral Injuries

Author: Jared Scott, M.D. Educational Pearls: DDx for blood at urethral meatus includes: pelvic fracture, ruptured bladder, kidney laceration, penile trauma. Retrograde Urethrogram (RUG) must be perf...

20 Maj 20174min

Populärt inom Vetenskap

dumma-manniskor
p3-dystopia
svd-nyhetsartiklar
kapitalet-en-podd-om-ekonomi
allt-du-velat-veta
rss-ufo-bortom-rimligt-tvivel-2
rss-vetenskapsradion-2
rss-vetenskapsradion
det-morka-psyket
sexet
medicinvetarna
rss-experimentet
paranormalt-med-caroline-giertz
rss-odla
rss-spraket
dumforklarat
rss-geopodden-2
vetenskapsradion
bildningspodden
rss-tidsmaskinen