There were problems in the working mode before the transformation. First, manual review of doctors’ orders was a huge workload; it took a long time, and it was impossible to carefully complete all the review work. Second, the finite area of the paper A4 limited the drug information that could be provided. When dispensing the paper drug list, “similar drug” errors were inevitable. In addition, paper consumption was inevitable. Third, the dispensed drugs were placed into the medicine basket in a disorderly manner. Although it is convenient for pharmacists to arrange drugs, it is inconvenient for checking pharmacists. Therefore, the nurses of the ward were dissatisfied with the efficiency of the inpatient pharmacy, and the work progress of the pharmacy pharmacist was often too slow. Conversely, information communication was not smooth, resulting in many unnecessary misunderstandings between the ward and pharmacy. Last, the inpatient pharmacy drug logistics are not monitored. Once the drug leaves the pharmacy, the pharmacist loses the ability to monitor the drug logistics, which is a great potential safety hazard.
After clarifying the need for closed–loop drug management and improving work efficiency, we decided to implement it using mobile technology. We packed the drug information into a mobile tablet supplemented by a necessary trolley. In addition to being used as physical support for the tablet, the trolley can also improve work efficiency. We speculated that a large amount of time spent in drug verification was the largest bottleneck in the entire workflow by rough careful observation at work. The carrier can provide ≥ 2 layers of area for placing drugs. Therefore, it is easier to check the drugs, and the work efficiency is improved (see Fig. 3). By comparing the data in Table 1 and Fig. 7, we can see that our previous inferences were correct, and the trolley and the new working method led to satisfactory results. The drugs were placed according to the order of the list, and verification of the reverse order of generation and placement was performed, which greatly shortened the drug–verification time. Considering the average preparation time of the five random wards, the minimum time reduction was 7.11 min, and the maximum time reduction was 44.30 min (P < 0.05). The data show that the longer the wards took before the transformation, the more efficient the improvement was after the transformation. Therefore, we speculate that if using this working mode, the more drugs the ward needs, the more effective the effect will be.
Due to objective and uncontrollable reasons, this study might have limitations. For example, fear of punishment or trouble, errors might be covered up, and the real data might deviate from statistical data. On the other hand, the delivery time statistics also do not consider the impact of weather on the data. For example, heavy rain would prolong the delivery time. Unexpected circumstances, such as offline network, system and equipment failures, could cause statistics to deviate from real-world time.
Drug risks may exist throughout the whole process, including in the issuance of doctors’ orders, drug dispensing, and drug distribution. Among them, the risk of drug dispensing is the greatest [6,7,8,9,10,11,12]. The use of information technology and equipment to ensure the safety of the drug use process has been advocated for [13]. The size of paper A4 does not provide enough information to distinguish between "similar drugs" (see Fig. 4). The mobile tablet can scan drug electronic supervision codes for drug verification, greatly increasing the ability to correctly check drug information [14,15,16]. The findings of this study can improve the safety of comprehensive dispensing in the inpatient pharmacy and reduce dispensing errors of “similar drugs” (see Fig. 8).
Although the protagonist of this study was mobile technology, the role of the trolley should be re-emphasized. It is a simple object, but it plays an important role in covering up the weight of the mobile tablet due to its supporting function, allowing the mobile tablet to be applied smoothly. Another important role of the trolley is to improve work efficiency. The trolley is a tool that kills two birds with one stone, and it also has some inspiration for us. It does not necessarily require too many technological elements to carry out important tasks, but applying small ideas can have large effects on work efficiency improvement.
We achieved closed-loop management of drugs by combining a mobile tablet with the HIS and improving the safety level of hospital drugs [17]. Drug dispensing and logistics information can be collected through mobile tablets. By analyzing the time data and logistics workload, fine management, such as adjusting the personnel ratio, can be realized to improve the efficiency of drug logistics and distribution and improve the satisfaction of the ward’s inpatient pharmacy.
After using this system, an unexpected effect was produced. The mobile tablet reduced the consumption of paper A4 in the hospital pharmacy. A paperless low-carbon office is more suitable for overcoming China’s carbon peak [18,19,20,21,22].
Medical digitalization has many challenges, such as being limited by the network, mobile terminals, information systems, and economic conditions. [23, 24]. For example, this system cannot support all sizes of mobile tablets, including mobile phones; however, these are the goals of our future efforts.
The involvement of digital technology can bring many benefits to medical care, such as limiting errors, reducing the workload, and improving the quality of medical services [25,26,27]. Moreover, tablet computer have gradually shown many advantages and have entered medical-related industries such as neurology, anesthesia-related nursing, hearing examination, orthopedics, and rehabilitation [28,29,30,31,32,33]. Many doctors, nurses, and pharmacists have applied mobile digitalization to clinical treatment, but it is relatively rare for the hospital pharmacy business in China to do so [34,35,36]. There are many reports of digitalization in medical care and nursing transformation and fewer reports on the impact of pharmacy workflow in hospitals.