The Study Seeks to Determine Potential Correlations Between Ventilation and Hematological Alterations, Contributing to a Better Understanding of Its Physiological Effects and Optimizing Patient Management in Critical Care Settings.

"Complete Blood Count (CBC): Using automated hematology analyzers to measure various blood cell parameters.~* C-Reactive Protein (CRP): Quantitative analysis using immunoturbidimetric assay.~* Erythrocyte Sedimentation Rate (ESR): Measured using the Westergren method.~* Coagulation profile:~* Prothrombin Time (PT): Using thromboplastin reagents and automated coagulation analyzers.~* Activated Partial Thromboplastin Time (aPTT): Using phospholipid-based reagents and automated analyzers.~* International Normalized Ratio (INR): Calculated from PT results.~* Bleeding Time: Ivy method or template bleeding time.~* Liver function tests: Including ALT, AST, ALP, bilirubin using spectrophotometric methods.~* Kidney function tests: Creatinine and BUN using enzymatic methods."

"Mechanical Ventilation Parameters~* \- Ventilation Mode: Ventilator settings will record modes such as volume-controlled ventilation or synchronized intermittent mandatory ventilation (SIMV), which deliver breaths based on patient needs.~* Tidal Volume: Measured in milliliters per kilogram of predicted body weight. Tidal volume settings aim to optimize oxygenation while minimizing lung injury risks by adhering to evidence-based limits (\<6 mL/kg).~* Positive End-Expiratory Pressure (PEEP): PEEP levels will be recorded in cmH₂O to prevent alveolar collapse and improve oxygenation. Adjustments will balance oxygenation benefits with potential risks like reduced venous return or lung overdistension.~* Fraction of Inspired Oxygen (FiO₂): FiO₂ values will be documented as decimals, starting at 1.0 (100% oxygen) and adjusted downward based on patient oxygenation needs."