sepsis Flashcards
sepsis
when infecctious etiology is provenor stronly suspected an the response results in hupofuntion of unifected organs
septic shock
sepsis w/ hypotension cannot be corrected with fluids
MD 2 TLR4
this moitey recognizes …. lipid A moitey = septic shock = ecoli, entc, kleb
which bacteria poorly recognized by md 2 tlr4
Make lipid A with fewer than six acyl side chains y pestis f tular vibrio vuln PSAR b pseudomallei
these bacteria trigger little inflamation
if do trigger sepsis have to replicate to high numbers in the tissues and blood
shielded LPS
N mening. shield by capsule. release large amounts of endotoxin and DNA
what is a large determinant of sepsis
if the host can detect the bacterias lps
rubor
increase blood flow to infected tissue
calor
recruit PMN and other cells
tumor
enhace permeability of local blood vssels
dolor
elicit pain
cytokines can exert
endocrine, paracrine, and autocrine effects
TFN - alpha
stimulates leukocytes and vasular endothelial cells to release of the cytokines as well as additional TNF alpha
increase prostaglandin and leukotrient producions
Is TNF alpha elevated with localized infections
no
If TNF alpha elevated with sepsis and shock
yes
Attract PMNs to the infection site
IL-8 and IL-17