sepsis Flashcards
colonisation
the presence of a microbe in the human body without inflammation (staph aureus on skin)
infection
inflammation due to a microbe
bacteraemia
presence of a viable bacteria in the blood
sepsis
life threatening organ dysfunction caused by dysregulated host repsonse to infection
septic shock
circulatory and cellular/ metabolic dysfunction associated with high risk mortailty
-attempt made at volume resus but still hypotensive
(due to low TPR and due to vasodilation)
pathogen
any microorganisms that has the potential to cause disease
virulence
likelihood of causing a disease
prodome
little bit ill before proper illness
what is SIRS?
Systemic inflammatory response syndrome
SIRS criteria?
temp >38 or < 36
HR>90
RR>20
WCC>12000 or <4000
what is SOFA?
sequential organ function assessment score
qSOFA criteria?
RR>22
sBP<100
altered GCS
What news score indicates infection?
5
what is infection?
invasion and multiplication of micro organisms within the body
symptoms of infection?
- cough
- dysuria
- abdo pain
- pain
- ab bloods
- confusion
septic shock?
hypotension despite fluid resus (30ml/kg) and vasoopressors (adrenaline and noradrenaline)
What is the sepsis 6?
GIVE 3 TAKE 3
give O2- aiming for 94-98%, if concerned measure ABG
give fluids- 0.9% NaCl saline solution (hartmanns) aiming for MAP >65mmHg
give antibiotics- broad spec, amoxicillin, metronidazole and gentamicin
take lactate- high lactate= sign of hypoperfusion
take urine output- marker of organ perfusion
take blood- for culture
what do you do if MAP <65mmHg after resus?
add vasopressors (noradrenaline) via CVC
How many blood cultures do you take?
1 (3 if suspected endocarditis)
what do you do it there is an abscess present?
Drain it
what is empirical management?
very educated guess
how do you assess pnuemonia?
curb 65
how do you assess endocarditis?
dukes criteria
what do toxins from bacteria cause?
vasodilation
what is ascites a sign of?
peritonitis
what indicated secondary bacterial peritonitis
history of trauma/perforated bowel
what is amoxicillin used for?
gram +ve (enterococci)
what is gentamicin used for?
gram -ve (coliforms)
what is metronidazole used for?
anaerobes
where are anaerobes most likely to be found?
in places with little o2 (ie bowel)