Vasopressor Support, Mean Arterial Pressure and Capillary Refill Time in Critically Ill Patients

The goal of this observational study is to learn whether different doses of various vasopressor drugs influence capillary refill time (CRT) value in crtically ill patients. The main questions it aims to answer are:How do vasopressor drugs determine CRT valueHow does mean arterial pressure (MAP) determine CRT valueHow often CRT value is normal (< 3 sec) despite hypotensive MAP (<65 mmHg)Participants will have the CRT measured over the course of the ICU hospitalization. At the end of the study, multiple linear regression will be performed to verify whether different doses of vasopressor drugs influence CRT value.

Inclusion Criteria:critical illness requiring vasopressor supportinvasive blood pressure monitoringExclusion Criteria:finger distal phalanx not availablepatient in a room of suboptimal ambient temperature