CSF (Definition of terms) Flashcards
CSF:
Fluid found bathing the spinal cord and the brain
BBB
A tissue membrane regulating passage of substances from blood to brain
Lumbar tap
is the procedure of obtaining the CSF
Valsalva maneuver
is a forceful exhalation to check nervous system function
Xanthochromia
is a condition where blood derivatives cause coloration of CSF
Major function of CSF
- Provide physiologic system supplying nutrients to nervous tissues
- Removes metabolic waste from cerebral metabolism
- Produces mechanical barrier to cushion the brain and spinal cord against trauma
Diseases detected by lab testing of CSF
- Meningitis types
- various specific infections
- hemorrhages
- infarcts
- tumors
Methods of CSF collection
- lumbar tap
- cisternal tap
- lateral cervical puncture
- ventricular cannulation
- fontanellar tap
CSF supernatant color due to xanthochromia
- yellow
- pink
- orange
- yellow green
- brown
(Cite the main reason)
The physician will be requesting for CSF to be collected
to find out the presence of CNS disorder
(Cite the main reason)
Not allowing the patients change position when collecting CSF
to maintain a constant CSF pressure
(cite the main reason)
Not allowing the patient change position when collecting CSF
to maintain a constant CSF pressure
(cite the main reason)
not to use tube no.1 of collected CSF for bacterial culture purposes
bloody so interference of blood is possible
(cite the main reason)
Avoiding glass tubes when doing CSF differential cell counts
cells adhere to glass affecting counts
(cite the main reason)
Determining serum glucose 2-4 hours before a CSF collection
it takes time for glucose to equilibrate after CSF collection
