Table 1 Clinical and laboratory variables in the study

Heart rate/min

Respiratory rate/min

Rectal temperature °C

Mucous membranes (normal/abnormal)

Capillary refill time (CRT) sec

Pain (no pain/moderate/severe)

Abdominal activity (no sounds/decreased/normal/increased)

Distended small intestine by rectal examination (yes/no)

Pain by rectal examination (yes/no)

Reflux through naso-pharyngeal tube (yes/no)

Laboratory variables

Packed cell volume (PCV) %

Haemoglobin g/l

Total protein g/l

α-, β- and γ-globulin g/l

Albumin g/l

Fibrinogen g/l

Anion Gap (Na⁺ + K⁺-(Cl^- + HCO3)) mmol/l

Na⁺ mmol/l

K⁺ mmol/l

Cl^- mmol/l

Total Ca mmol/l

Mg⁺⁺ mmol/l

Lactate mmol/l

HCO₃ ^- mmol/l

Arterial pO₂ kPa

Arterial pCO₂ kPa

Standard Base Excess (SBE) mmol/l

PH

D-dimer mg/l