Aim: Delirium symptoms are typically infrequent or moderate, making diagnosis challenging for novice doctors. To investigate the frequency and causes of delirium among hospitalized adults, we conducted cross-sectional pilot research. Additionally, we looked at the possibility of using a particular medical instrument to improve the rate of delirium diagnosis and enhance its care in young doctors. Methods: A delirium medical tool was designed to aid younger physicians in verifying the diagnostic, screening for, and treating frequent triggering factors of delirium. Study participants who have had a shift in cognitive function were given this instrument to use. The clinical instrument was used to collect data on the prevalence of delirium as well as its possible causes. A comparison was made between the delirium identification rate of the study team and those teams which are not under study, on which the medical tool was not being applied. Results: Over the course of two months, 282 patients, in total, were admitted to the study team, while the non-study team took in a total of 2822 patients throughout the trial period. The incidence of delirium was 1.4% among the teams that were not participating in the research, but it was 5.3% among the teams that were included in this study. The older patients had a significantly higher incidence of delirium. The predominant phenotype was characterized by hypoactive delirium, and infection was the most typical underlying etiology. Conclusions: Since there is a dearth of local data on the occurrence and causes of delirium among those patients who are admitted to hospitals, this pilot research has provided some insight into the topic. Younger clinicians might use the clinical tool to identify and treat delirium earlier. This is in addition to the fact that the rate at which delirium is recognized will increase when this occurs.