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Cardiovascular

Sepsis


Criteria for sepsis

  • T >38.3 or <36

  • HR >90

  • RR >20

  • Confusion

  • BSL >7.1 in non-diabetic

  • Oliguria


Septic shock

  • BP <90

  • Mottled or cold peripheries


qSOFA (Not to diagnose sepsis but to predict mortality/need for ICU in suspected sepsis)

  • 2 or more is concerning:

    • BP <100

    • RR >22

    • Confusion

    • Cap refill >3 sec

    • Purpuric rash

    • Lactate >2

    • Oliguria


Complications

  • Multi-organ failure (renal, respiratory, cardiac, hepatic)

  • DIC

  • ARDS

  • Septic encephalopathy → confusion, delirium

  • Hypoperfusion → limb ischaemia, necrosis

  • Long-term immunosuppression → increased risk of recurrent infections


Early intervention for sepsis or septic shock

  • Rapid interventions within 1 hr of recognition:

    • Measure blood lactate concentration; repeat within 2–4 hrs if >2 mmol/L

    • Obtain blood cultures before antibiotics (2 sets in adults)

    • Administer broad-spectrum antibiotics promptly (do not delay for investigations)

    • Start IV fluid resuscitation (crystalloids) for hypotension or lactate >2 mmol/L

    • Use vasopressors (e.g., noradrenaline) to maintain MAP ≥65 mmHg if hypotension persists

  • If the source of infection is identified, initiate specific treatment (e.g., abscess drainage, device removal) in consultation with specialist teams

  • Monitor response closely—repeat lactate and assess for perfusion markers (cap refill, BP, urine output)


Additional Notes:

Monitor for signs of progression to multi-organ dysfunction, particularly in the elderly or immunosuppressed.

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