Our study is an observational study and the follow-up hematological tests of patients in the intensive care unit will be recorded during their first admission. In this study, routinely checked blood parameters in patients will be interpreted and mnutric scores created together with their clinical features will be recorded. Routine blood tests will be performed during these records and no intervention will be made. Only an observational study will be conducted.

Written informed consent was obtained from all participants or participants whose signature could not be obtained and included in the study. Between 1 December 2024 and 1 April 2025, 85 critically ill patients admitted to the anaesthesia intensive care unit of our hospital were included in the study. Patients aged 18 years and older who were admitted to the ICU and followed for more than 24 hours were included in the study. Patients younger than 18 years, pregnant women and patients with gastrointestinal motility disorders were excluded from the study. Patients' demographic characteristics, including age, sex, and comorbidities, were recorded at the time of initial admission. Haemoglobin (Hb), white blood cell (WBC), lymphocyte, platelet, aspartate aminotransferase (AST), alanine aminotransferase (ALT), C-reactive protein (CRP) and albumin levels were recorded during the first hospitalisation. Sequential Organ Failure Assessment Score 2 (SOFA 2) and Apache 2 score values were recorded. The 28-day follow-up of these patients was recorded. Patients who died within 28 days and patients who survived were grouped as survivors. The use of vasoactive drugs, renal replacement therapy, the need for mechanical ventilation and the length of stay in the intensive care unit of the groups were recorded during the follow-up period. The nutrition team placed a nasogastric catheter in all patients and started enteral nutrition at 25-30 kcal/kg in patients without contraindications.

Inclusion Criteria:

• over 18 years old , Patients who have been hospitalized for more than 24 hours

Exclusion Criteria:

• under 18 years old, pregnancy patients, Patients hospitalized for less than 24 hours

Critical care patients admitted to the intensive care unit and no deaths within 24 hours

patient outcome data