We also assessed the additional time added to each order entry session. Initially, using observational data, the CPOE ID reentry function added 6.2 seconds to each order entry session. However, providers that were more familiar with the system took an average of 4.0 seconds. While this added time per order entry session does not seem like much of an issue or delay, in a busy 12-hour shift in the ED it could be seen as significant. Adelman reported 6.6 seconds additional time required in for the ID reentry function used in his study [8], while Green’s study was designed using a 2.5-second mandatory delay before users could close the verification dialogue box [10].
The biggest challenges in implementing our project were unforeseen IT issues. The “go-live” date for ICD-10 was the same as the date we were to start the ID reentry requirement. IT personnel were needed to help in the EHR ICD-10 development and support, which delayed our start date. Additionally, other IT issues were identified. For example, the initial implementation of this project was to begin in the ED involving active ED patients only. At the project’s onset, the ID reentry function erroneously became active in all hospital locations. To fix this error, the entire double ID system alert, including the ED location, had to be removed and adjusted.
In addition to the above challenges, the team discovered errors that needed to be addressed during beta testing. For example, some clinicians would enter an order but no alert asking for the identifying data appeared. The order was entered and completed without the use of the double ID. Once discovered, IT was able to identify and correct the error. Beta testing also revealed an error in the system where providers who incorrectly identified a patient were “locking-out” of the CPOE system for that particular patient during the patient’s entire encounter. This issue was also quickly identified and resolved.
Despite the effectiveness of this system in reducing the rate of near-miss wrong-patient orders in the ED, errors still occur. It is possible that providers are entering the patient’s initials and year of birth without carefully verifying the patient’s identity [9].The CPOE double ID system alert is about three-quarters the size of the monitor screen. Thus, the clinician is able to verify the patient’s initials and year of birth using the patient’s header on the screen behind the patient identification alert. If the provider simply types the initials and year of birth on the patient’s header, then an identification error can occur.
More work is needed to decrease CPOE-related patient identification errors. Possible improvements may include single sign-ons and a no-interruption policy when writing orders. During our investigation, it was found that some clinicians would have multiple EHR sign-on sessions open at one computer terminal. These multiple EHR sign-on sessions were sometimes the root cause of a wrong patient error. With multiple sign-on sessions open, clinicians could toggle back and forth between patients on the same computer terminal and mistakenly complete an order on the wrong patient.