Sepsis Flashcards

(37 cards)

1
Q

What is colonisation

A

Presence of a microbe in the body without an inflammatory response

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2
Q

What is infection

A

Inflammation due to a microbe

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3
Q

What is bacteraemia

A

Presence of viable bacteria in the blood

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4
Q

What is the definition of sepsis

A

The dysregulated host response to infection leading to life-threatening organ dysfunction

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5
Q

What is septic shock

A

Subset of sepsis with circulatory and cellular/metabolic dysfunction associated with a higher risk of mortality
These patients will not get better despite adequate volume resuscitation

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6
Q

What is the general indicator for sepsis

A

NEWS > 5 with a suspicion of infection

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7
Q

What is SIRS

A

Systemic inflammatory response syndrome

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8
Q

Higher the NEWS, the higher the mortality - true or false

A

TRUE

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9
Q

What is qSOFA

A

A quick scoring system for sepsis

3 criteria

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10
Q

List evidence of infection

A
Fever 
Abnormal bloods 
Cough 
Abdominal pain 
Confusion
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11
Q

ARDS can be a consequence of sepsis - true or false

A

True

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12
Q

What is the immediate management for sepsis

A

Sepsis 6
Take 3 - blood cultures, lactate and urine output
Give 3 - oxygen, IV fluids and IV antibiotics

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13
Q

Describe how fluids are given in the sepsis 6 bundle

A

Give a fluid challenge (set volume over a set time)
Prescribe 250-500mls over 15 mins (saline or Hartmanns)
Aim for MAP >65mmHg
Aim for 30ml/kg over the first 3 hours

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14
Q

Do you just do blood cultures in the sepsis 6

A

Not necessarily

Can also do sputum, urine or stool depending on the suspected

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15
Q

What is high lactate a sign of

A

Hypoperfusion

Associated with a higher mortality

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16
Q

What is urine output a marker for

A

Organ perfusion

17
Q

What urine output should you aim for

A

0.5mls per kilo per hour

18
Q

In hours 2-6 after sepsis diagnosis, what are you aiming for

A

Improvement in NEWS, haemodynamic stability and reduction in lactate
Continue resuscitation in this time

19
Q

If the sepsis 6 bundle does not improve the condition what is happening

A

The patient is in septic shock

Need to escalate treatment and send to MHDU

20
Q

If MAP remains below 65 after fluid resuscitation what do you do

A

Give noradrenalin (vasopressor) via central line

21
Q

Why is sepsis increasing

A
Better at recognising it 
Increased elderly population
Increased use of invasive surgery 
Bacterial resistance 
Increased numbers of immunocompromised patients
22
Q

What are risk factors for sepsis

A
Extremes of age 
Immunocompromised 
Malignancy 
Trauma 
Burns 
Co-morbidities such as diabetes 
Alcohol and drug abuse
23
Q

List some late complications of sepsis

A
Functional limitations 
3x higher rate of cognitive impairment 
Mental health 
40% readmitted within 90 days
Higher risk of recurrent infection, kidney impairment and CV disease 
Residual organ damage 
Impaired immune function
24
Q

What is post-sepsis syndrome

A

Causes a variety of emotional and physical problems
E.g. myalgia, insomnia, sensory change, mood swings
Lasts 6-18 months

25
List common symptoms of sepsis
``` High or low temperature Uncontrolled shivering Low urine output Blotchy rash Confusion ```
26
What is virulence
Likelihood of a pathogen causing disease
27
In which situation is staph epidermidis likely to cause disease
If there is prosthetic material such as plastic or metal
28
What is a strict aerobe
Organisms that require oxygen for growth, such as Pseudomonas
29
How does sepsis affect the CV system
Hypotension due to widespread vasodilatation leading to fall in total peripheral resistance
30
How do you correct hypotension in sepsis
fluid resuscitation +/- inotropes / vasoconstrictors
31
How does sepsis affect the respiratory system
Endothelial injury within lung tissue / capillary leak Diffuse alveolar oedema Respiratory failure, needing supplemental oxygen
32
How does sepsis affect the kidneys
Acute kidney injury - rise in Urea/Creatinine or oligo-anuria due to renal hypoperfusion
33
How does sepsis affect the liver
Gives you 'shock liver' | Elevated ALT/AST +/- jaundice
34
How does sepsis affect the CNS
Delirium / acute confusional state due to diffuse cerebral hypoperfusion / dysfunction May become drowsy / decreased conscious level
35
How does sepsis lead to lactic acidosis
Diffuse tissue hypoperfusion / hypoxia Anaerobic metabolism leads to lactic acid production -> metabolic acidosis Acidosis worsens cardiovascular stability
36
What blood markers are raised in sepsis
IL-6, CRP and white cell count
37
What blood markers are lowered in sepsis
Platelets