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Table 1 Clinical and laboratory signs for sepsis diagnosis [33]

From: The cut-off levels of procalcitonin and C-reactive protein and the kinetics of mean platelet volume in preterm neonates with sepsis

Clinical signs

Laboratory signs

Modified body temperature:

 1-Core temperature greater than 38,5 °C or less than 36 °C and/or

 2-Temperature instability

Leucocyte count:

 1- < 4000/mm3 or

 2- > 20,000/mm3

Cardiovascular Instability:

 1-Bradycardia

 2-Tachycardia

 3-Rhythm instability:

 4-Reduced urinary output (less than 1 ml/kg/h),

 5-Hypotension

 6-Mottled skin,

 7-İmpaired peripheral perfusion

Immature to total neutrophil ratio: ≥0.2

Skin and subcutaneous lesions:

 1-petechial rash

 2-sclerema

Platelet count

< 100,000 /mm3

Respiratory instability:

 1-Apnoea or

 2-Tacypnoea or

 3-Requirement of ventilation support

CRP > 15 mg/L or PCT ≥ 2 ng/mL.

Gastrointestinal:

 1-Feeding intolerance

 2-Poor sucking

 3-Abdominal distention

Glucose intolerance confirmed at least 2 times:

 1-Hyperglycaemia (blood glucose > 180 mg/dL or 10 mmol/L) or

 2-Hypoglycaemia (glycaemia< 45 mg/dL or 2.5 mmol/L)

Nonspesific:

 1-Irritability

 2-Lethargy

 3-Hypotonia

Metabolic acidosis:

 1-Base excess (BE) < − 10 mEq/L or

 2-Serum lactate > 2 mmol/L

  1. CRP C-reactive protein, PCT Procalcitonin