Sepsis Flashcards
Sepsis
Sepsis is life-threatening organ dysfunction due to a dysregulated host response to infection. Sepsis clinical criteria: organ dysfunction is defined as an increase of 2 points or more in the Sequential Organ Failure Assessment (SOFA) score.
- due to infection
pathophysiology of sepsis -
what are the interleukins involved
- Complex interaction between the pathogen and immune system (TNF- ⍺, IL-18, IL-1B)
- Inflammatory response: vasodilation, increased vascular permeability, migration of WBC)
- Endothelial barrier compromised
- Hypotension, tissue hypoperfusion
What is septic shock
Why is serial lactate needed?
Septic shock is cardio-circulatory failure - sudden drop in bp - septic shock - several organ stop functioning sequentially. This is multi-organ failure = death.
what happens when E coli is identified by monocytes
End- organ damage in sepsis
what occurs
• ARDS • Cardiomyopathy • Acute kidney injury • Cholestasis • Coagulopathy • Delerium/ encephalopathy • Bone marrow suppression • Myopathy
What causes sepsis
What are the most common courses of sepsis?
•Bacteria • Viruses(dengue) • Fungi • Parasites(malaria)
Who gets sepsis?
Anyone can. •
Groups more at risk: • Very young • Very old
- Immunosuppressed (chemotherapy, cancer, those on immunosuppressive therapies)
- Those with chronic diseases
- Post surgery
What causes necrotizing fasciitis
Group A streptococcus usually
What is this and what score would you escalate?
NEWS2 score
Escalate with score >5
or >3 with high suspicion
When is SOFA score used and what does it predict
What does Q-Sofa use and what is it predictive of?
SOFA score used in ITUs- predicts mortality
Q-SOFA score – simple and predictive - altered mental status, high RR, low BP
What are symptoms of sepsis
What is SEPSIS 6 and when should it be given?
Give 3 and take 3 within the HOUR
- Antibiotic IV - according to trust guideline
- Oxgen - target >92%. (careful COPD-88-92) - 15L O2 non rebreath
- IV fluid - at least fluid bolus (500ml crytalloid with 130-154mmol/L sodium over 15min 0.9% saline). After 2 bolus - speak to senior
- Blood cultures, urine cultures, U+e, FBC, LFT, clotting, imaging
- lactate (ABG)
- Look at urine output (catheterise)
how is sepsis monitored and how often?
hourly obs
urine output
gcse
What are post sepsis symptoms
- ITU admission brings risks (healthcareassociated infections, myopathy)
- Prolonged immune-suppressive phase in sepsis
- Psychological effects can be disabling
Sepsis prevention is done how?
Vaccinations
- Hand hygiene
- Prevention of healthcare-associated infection
- Public awareness