Sepsis Flashcards
SIRS
Systemic Inflammatory Response System
triggered by infection, ischemia, infarction, injury.
DX by 2 or more of the following:
- HR >90bpm
- RR >22
- temp >38 or <36
- altered mental status
- WBC count >12.0 or <4.0
sepsis
systemic inflammatory caused by an infection
severe sepsis
sepsis that is further complicated by organ dysfunction, hypoperfusion, or hypotension.
septic shock
this develops when hypotension caused in sepsis cannot be revered by fluid resuscitation and tissue perfusion abnormalities are present.
MODS
Multi- Organ Dysfunction Syndrome.
the failure of two or more organs in a pt who is acutely ill.
homeostasis cannot be achieved without intervention.
mortality is 70% when three or more organs fail.
MODS is a progression from SIRS.
sepsis presentation
initially a hyperdynamic state:
increased cardiac output and decreased systemic vascular resistance.
–> compensatory mechanisms like tachypnea and tachycardia
–> skin is initially warm and flushed
hyperdynamic state for more than 24 h:
body will become hypotensive
–> cool and clammy
–> MODS
Septic Shock Presentation
CVS: biventricular dilation. low ejection fraction
increased or decreased temp
GI: GI bleed
paralytic ileus
NVS: agitation, altered LOC/mental status, coma (late)
Resp: acute resp distress syndrome (ARDS)
crackles, hyperventilation, hypoxemia,
pulmonary htn, resp alkalosis–>acidosis, resp
failure
Renal: decreased urine output
Skin: warm and flushed–> cool and clammy, mottled
diagnostic findings:
increased glucose
increased lactate
decreased platelets
positive blood cultures
decreased urine Na
higher or lower WBC
sepsis presentation
A confirmed or suspected source of infection, PLUS:
altered mental status fever (>38.3) HR >90 hyperglycemia hypothermia edema tachypnea
increased CRP, procalcitonin
leukocytosis or leukopenia, or normal WBC
hypotension (<90) or decrease systolic value of >40
organ hypoperfusion symptoms: decreased urine output hypoxemia high PTT and INR hyperbilirubinemia ileus increased creatinine thrombocytopenia (low platelets)
hyperlactatemia
low cap refill
4 MAIN INTERVENTIONS FOR SEPSIS
- early identification and notify the MRP or physician
- LABS and DIAGNOSTICS
- lactate (notify if >2)
CBC, INR, PTT, electrolytes, BUN, creatinine, glucose, Liver Function Tests, lipase, troponin
- blood cultures
- urinalysis
- sputum
CXR and 12 lead ECG - IV fluid resuscitation and broad spectrum ABX
- Monitoring
VS, GCS, Urine output