Blood Poisoning (Sepsis): Symptoms, Complaints, Signs

The following symptoms and complaints may indicate sepsis (blood poisoning):

Leading symptoms

  • Fever (> 38 °Celsius) and chills; less commonly hypothermia (hypothermia, < 36 °Celsius).
  • Confusion/drowsiness
  • Tachypnea (rapid breathing): > 20/min.
  • Blood pressure drop: systolic blood pressure [mmHg] ≤ 100
  • Tachycardia (heartbeat too fast: > 100 beats per minute).
  • Peripheral inferior blood flow
  • Alteration of consciousness (confusion)
  • Severe feeling of illness

Possible accompanying symptoms

  • Rapid-onset skin hemorrhages in Waterhouse-Friderichsen syndrome such as: Petechiae (pinpoint hemorrhages), sugillations (area hemorrhages), or generalized purpura (as a dermatologic manifestation of thrombocytopenia/platelet deficiency) → think of: Meningococcal sepsis

Warning signs (red flags)

  • Responds only when approached/painful stimulus or no response.
  • Acute state of confusion
  • Tachypnea (respiratory rate ≥ 25/min)
  • Requires oxygen to maintain oxygen saturation (SpO2) ≥ 92.
  • Systolic blood pressure [mmHg] ≤ 90
  • Mean arterial blood pressure [mmHg] < 65 or use of vasopressors.
  • Heart rate ≥ 130 beats per minute
  • Skin rash or skin lesions Skin lesions: Purpura (spontaneous, small-spot skin, subcutaneous, or mucosal hemorrhages) and/or petechiae (flea-like hemorrhages); rash that cannot be squeezed away; pale skin/cyanosis (blue discoloration of the skin)* .
  • Anuria (lack of urine output; maximum 100 ml/24 h) or oliguria (maximum daily output of 500 ml) or urine < 0.5 ml/kg per hour
  • Serum lactate ≥ 2 2 mmol/l
  • Recent chemotherapy

* In hyperdynamic septic shock, the skin is hyperthermic and usually dry.