IntroductionAngiography is associated with anxiety, stress, and changes in patients’ vital signs. The role of the liaison nurse is to bridge gaps and solve problems between departments, thereby preventing the occurrence of undesired complications during patient transfers. Proper preparation of patients by the liaison nurse may lead to an improvement in the hemodynamic status of patients. The present study was conducted to investigate the effect of liaison nurse on hemodynamic status during transfer process to angiography.MethodThis randomized controlled trial was conducted from December 2019 to March 2020 on 62 patients who were candidates for elective angiography at Imam Reza Hospital in Mashhad. Participants were selected using a convenience sampling method and then randomly assigned to either the control or intervention group using a lottery system. In the intervention group, patients benefited from the presence of a liaison nurse from the moment the transfer order was issued by the doctor. Tools used included a demographic information questionnaire and a hemodynamic signs checklist. Data were analyzed using SPSS 25 with independent T-tests, paired T-tests, Wilcoxon, Mann-Whitney test, chi-squared, and Fisher’s exact test.ResultFollowing the intervention, the mean systolic blood pressure, heart rate, and respiratory rate in the intervention group were found to be significantly lower than those in the control group (p < 0.05). In contrast, the mean body temperature, diastolic blood pressure and the percentage of arterial blood oxygen saturation did not exhibit a statistically significant difference between the two groups (p > 0.05).ConclusionThe liaison nurse role emerges as a valuable strategy for enhancing patients’ hemodynamic stability, and its implementation can have a positive impact on patient outcomes in hospital settings.