The aim of this integrative systematic review was to systematically search, critically appraise, and summarise reported research related to readiness to practice and types of clinical support offered to newly registered nurses and preregistration nurses (such as, mentoring, preceptorship, or clinical facilitation). The review was undertaken in February 2017. The databases of Medline, CINAHL, Academic Search Complete, and Cochrane Library were searched. The search returned 137 articles. The final number of papers (after screening and exclusions) was 15 articles related to the topic. Key findings that influence work readiness for newly registered nurses were - Importance of Preceptors for Facilitating Work Readiness with the sub themes of Positive relationships between the preceptors and the student or newly registered nurse, Preparing and supporting the preceptor for the role and Using a model to guide preceptorship of students, the second theme was related to Clincal exposure, including a sub theme of Adequate clinical exposure and clinical competence. Work readiness has been attributed to many factors and this review has revealed a number of key factors that contribute to newly registered nurses' work readiness such as preparation of the preceptor, positive relationships and adequate clinical exposure.