CSF
CSF organisms for Microbiology lab
Terms
undefined, object
copy deck
- CAMP, Hippurate, Bacitracin, PYR
- The four identifying tests for GBS.
- Haemophilus influenzae
- Smells like a Micro lab hallway.
- Listeria
- Grows well on BAP and looks like GBS with small zone of hemolysis excepting that the catalase result is positive as opposed to the GBS.
- 14-45 mg/dL
- Normal protein level.
- Neisseria meningitidis
- Gram negative diplococci that look like kidney beans.
- Listeria
- Likes cold temperatures and refrigeration, and is found often in dairy products during outbreaks
- alpha-hemolysis
- Streptococcus pneumoniae shows this kind of hemolysis.
- <5 lymphs/mL
- Normal lymphocyte count for CSF.
- positive, positive
- Haemophilus influenzae is catalase:____________ and oxidase:____________.
- GBS
- This organism is responsible for childbed fever and related fatalities in women and babies.
- Porphobilinogen or porphyrin
- What is produced by an X factor independent organism in the Porphyrin test?
- Haemophilus influenzae
- Gram negative coccobacillary rod that is hard to see on a gram stain, but can be found in RBCs.
- Capnophilic
- Incubation in CO₂.
- Heat
- What allows Haemophilus to grow on sheep's blood agar?
- X Factor
- Heat stable tetrapyrrole compounds that are found often in iron-containing pigments.
- Viridans strep
- Other alpha streps are called this...
- Fluorescence
- A positive result in the porphyrin test is...
- BAP, CHOC, and Thayer Martin
- Agars that Neisseria grows well on.
- 57%
- S. pneumoniae urine test accuracy.
- Optochin sensitivity
- This test requires CO₂ incubation and shows sensitivity at >14mm of zone.
- positive, positive
- Neisseria meningitidis is catalase:____________ and oxidase:____________.
- Beta-lactamase
- Always do this test if Neisseria meningitidis is discovered.
- Viral meningitis
- An increase in lymphocytes (200-500), normal glucose, and slightly elevated protein levels.
- Listeria
- Gram positive rod that is a facultative anaerobe that is non-sporeforming.
- GBS
- Gram positive cocci that are in pairs and short chains and have large colonies and small zones of beta-hemolysis.
- Porphyrin test
- This test looks for X factor independent Haemophilus.
- Bile solubility
- This test looks for the presence of autocatalytic enzymes in S. pneumoniae.
- Bacterial meningitis
- An increase in neutrophils (500-20,000), decreased glucose, and elevated protein levels.
- 45-100 mg/dL
- Normal glucose value.
- V Factor
- NAD or NADP