Electrolyte Imbalance Analysis at Intensive Care Unit Admission : Retrospective Study

Natremia (Hypo: <136 mmol/L, Normo: 136-145 mmol/L, Hyper: >145 mmol/L) Kalemia (Hypo: <3.5 mmol/L, Normo: 3.5-5.5 mmol/L, Hyper: >5.5 mmol/L) Calcemia (Hypo: <8.8 mg/dL, Normo: 8.8-10.6 mg/dL, Hyper: >10.6 mg/dL) Magnesemia (Hypo: <1.9 mg/dL, Normo: 1.9-2.5 mg/dL, Hyper: >2.5 mg/dL) Phosphatemia (Hypo: <2.5 mg/dL, Normo: 2.5-4.5 mg/dL, Hyper: >4.5 mg/dL)

The number of patients in all types of electrolyte imbalance will be determined. The effect of the type of electrolyte imbalance on mortality, APACHE-II score and length of invasive ventilation and hospital stay will be evaluated.