Critical care is necessary to deal with life-threatening conditions, but there are major challenges in resource-poor environments, such as Cameroon, where there is insufficient infrastructure and personnel shortages. The purpose of this study was to determine ICU features, key constructs, and procedural aspects from a range of secondary sources like academic journals and government reports. The findings thus revealed that the major features of ICUs ought to be an integrated operational design, a well-trained workforce, sufficient resources, and good leadership. Key constructs include access to sophisticated technologies and strong policies. Procedural components must prioritize evidence-based care, technology interventions, knowledge sharing, and mobilization of resources.