infection Flashcards
when is HBsAG present
in the early stages of hep B infection between 1-6 months and if present after 6 months then implies chronic infection
when is Anti-HBs present
after exposure to Hep B or in immunisation
When is Anti-HBc present
either in current or past infection with hep B
what is HBeAG
a marker of Hep B presence and infectivity levels
what do these results mean…
Anti-HBs positive
Anti-HBc negitive
HBsAG negitive
Hep B immunisation
because HBs is a marker of immunisation but the others are a marker of infectivity and antigen so current or previous infection
what do these results mean..
Anti-HBc positive
HbsAG negitive
had a previous hep B infection but not currently carrying it eg not infective so cant spread it
what do these results mean..
Anti-HBc positive
HBsAG positive
current infection with hepatitis B and carries it
name the 6 steps in hospital infection antibiotic escalation
- start with amox to cover strep, enterococcus and listeria
- switch to co-amox to cover staph, haemophilius + e.coli
- switch to tazocin to cover pseudomonas
- switch to meropenam to cover b lactamase resistant antibiotic infections
- add teicoplanin or gentamycin to cover MRSA
- add doxycycline or clarithromycin to cover atypicals
which antibiotic would you use to cover a possible strep infection
amoxicillin
which antibiotics would you use to cover strep/listeria/ enterococcus
amoxicillin
which antibiotics would you use to cover strep/staph/listeria/e.coli/ haemophilius
co-amoxiclav
which antibiotic would you use to cover strep/staph/listeria/e.coli/haemophilius and pseudomonas
tazocin
which antibiotic would you use to cover atypical bacteria
doxycycline or clarithromycin
