Sepsis Flashcards
In which gender does sepsis more commonly affect?
Males
What is the general trend of sepsis diagnosis? Why?
Going up
Patients are living longer
What is SIRS?
Systemic inflammatory response syndrome
What are the four criteria that define SIRS?
- Temp more than 101.4 F or less than 96.8 F
- HR more than 90
- RR more than 20 or PaCO2 less than 32
- WBC more than 12 or less than 4
What is the range of temperatures that define SIRS?
Less than 96.8 or more than 101.4
What is the HR that defines SIRS?
More than 90 bpm
What is the RR that defines SIRS?
more than 20 breaths per minute
What is the PaCO2 that Defines SIRS?
Less than 32 mmHg
What is the WBC count that defines SIRS?
More than 12, less than 4, or bandemia of more than 10%
How many criteria of the SIRS definition must be met to diagnose SIRS?
2 of the 4 AND suspected or identified infection
What are the BP ranges that define hemodynamic compromise?
Less than 90 SBP
MAP less than 70
SBP decrease by 40
What lab value is used to assess for general organ dysfunction?
Lactate
What is the UOP that defines organ dysfunction?
Less than 0.5 mg/kg/hr for 2 hours despite adequate hydration
What are the pulmonary criteria for end organ dysfunction?
PaO2/FiO2 less than 250 or 200 in absence/presence of PNA respectively
What bili level indicates liver dysfunction?
More than 4
What CrCl level indicates renal dysfunction?
More than 2
What is the definition of septic shock?
Sepsis + hypotension despite resuscitation measures
What is the sepsis continuum?
SIRS
Sepsis
Severe sepsis
Septic shock
What are the two major pathophysiological factors that affect sepsis prognosis/severity?
- Pathogen features
2. Host features
What causes the decreases systemic vascular resistance in sepsis?
Proinflammatory cytokines
What is distributive shock?
Peripheral vasodilation causes an acute drop in BP, leading to reflex tachycardia
What are the three most common etiologies of septic shock?
UTIs
Pneumonia
GI infx
What are the ssx of sepsis (mnemonic of SEPSIS)?
Shivering Extreme pain Pale Sleepy Impending doom SOB
Lymphedema from working in the garden = ?
Sporotrichosis
Bowel ruptures should be treated for what type of bacteria?
Gram negative anaerobes
What is one of the first organs to be affected in septic shock? What lab value is used to evaluate this?
Kidneys
CrCl
What does a HCO3 level tell you?
Acidosis/alkalosis
Why get coags for sepsis?
Determine if DIC is present
What is the best timeframe for the delivery of abx for a septic pts?
Within 1 hour
What are the most common infectious agents that mediate sepsis? (5)
Staph aureus Strep Pneumoniae E. Coli Klebsiella Pseudomonas
What percent of blood cultures are positive in septic patients?
only 1/3
What is the lab value that can be used to evaluate for rhabdomyolysis?
CK
What is the equation for MAP during sepsis?
SABP + 2xDABP / 3
65 mmHg
True or false: with appropriate cuff measurements, BP readings can be as accurate as central line measurements
True
What type of IVFs are the initial treatment of choice for sepsis? HOw much should be administered?
Crystalloids
30 mL/kg
How long should IVFs be run with Sepsis?
As long as showing continuing ssx of improvement
Why start a central line for sepsis?
If giving pressors or large boluses of meds.
However, PICCs can get IVFs nearly as quickly
What happens if MAP is still not at the goal after 30 ml/kg of IVFs?
Diagnose septic shock
What is the best pressor?
NE
What, besides NE, can be used for pressors?
Epi
Vasopressin
Dopamine
Phenylephrine
True or false: vasopressin is a first line pressor
False– do not use it first
Which type of abx therapy is better for gram negatives: mono or combination therapy?
Combo
How important is it to ensure that lactate levels fall with treatment of sepsis?
Very–tells you how effective resuscitation measures are
What are the four things to be completed within 3 hours of presentation of sepsis?
- Lactate levels
- Blood cultures
- Abx
- IVF (30ml/kg)
What are the three things to be completed within 6 hours of presentation of sepsis?
- Apply pressors if needed
- Assess tissue perfusion
- Remeasure lactate
True or false: a physician’s assessment is equivalent to obtaining additional labs for assessing for adequate tissue perfusion
True