MINS, AKI and Pulmonary Pathology in Patients Undergoing Acute Abdominal Surgery

Inclusion Criteria: * Adults (≥18 years). * Patients included in the AHA regimen undergoing CT on suspicion acute high-risk abdominal disorder e.g.g bowel obstruction GI perforation or ischemia, and need of emergency abdominal surgery, either laparoscopic surgery or laparotomy. * Able to speak Danish. In case Danish was not spoken an interpreter was used to obtain the informed consent. * Able to give informed consent. Exclusion Criteria: * Patients who cannot give informed consent to participate in the study 15 minutes after receiving verbal information regarding the study. * Known chronic kidney disease requiring dialysis at the time of admission (only exclusion criteria for the part of the study relating to AKI). * Patients included in the AHA regimen, but conservative treatment is chosen (only exclusion criteria for the part of the study relating to MINS and AKI). * Patients not resident in Denmark. * Patients not able to give informed consent. * Patient not able to speak Danish and not enough time to obtain an interpreter.