CPOE
Computerized physician order entry (CPOE) is a technology that allows physicians to enter orders, medications, or procedures directly into the computer instead of handwriting them. [1] [2] The electronic medical system transmits the order to the appropriate department or individual so the order can be carried out. [3]
Contents
- 1 CPOE History
- 2 System Configuration
- 3 Implementation Strategies
- 4 Physical Computing Environment
- 5 Emergency Department Setting
- 6 Mobile Computers
- 7 Monitoring and Evaluation
- 8 Unintended Consequences
CPOE History
In 1971, Lockheed Martin developed the first CPOE system in the El Camino hospital in Mountain View, California. The system was rudimentary, withalmost no clinical decision support (no alerts, automatic calculations, or suggestions), but it did allow physicians to quickly order medications with a few simple clicks.
Despite the reported success of the medical information system in El Camino Hospital[5], others were slow to follow. In 1984, the Regenstrief Institute implemente a CPOE at Wishard Memorial Hospital. This system required keyboard input, but had more decision support than the El Camino system. It allowed automatic reordering and alerts for known adverse interactions. In 1988, the LDS Hospital in Salt Lake came out with HELP, a blood-product-specific CPOE system that added an additional "standing orders" feature, which automatically placed orders for specific procedures that were added over time. [4]
From 1994 to 2004, commercial CPOE grew quickly. Cerner came out with Millenium, Eclipsys changed their E7000 line into SCM, Siemens launched InVision, Meditech announced Magic, EpicCare was released, McKesson developed Horizon, and GE was just finishing Centricity. [5] However, as of 2009, less than 10% of the hospitals in the US had fully operational CPOE systems. [6]
System Configuration
The system should be configured correctly for ease of use and security.
- Passwords should be secure yet easy to remember. [7]
- Co-signatures allows for multiple levels of function and security (eg, an RN can place an order but only with a signature from a physician)
- Time-out settings prevent accidental unauthorized access.
- Clinical staff are sometimes reluctant to switch from paper to electronics. Active encouragement, additional training, and a deadline to fully integrate into CPOE increases compliance.
Dealing with Patient Transfers
Dealing with Patient Transfers
Pre-Admission Order Policies
Creating Order Sets
RxNorm
LOINC
LOINC: Logical Observation Identifiers Names and Codes
Unified Medical Language System - UMLS
Unified Medical Language System - UMLS
Systematized Nomenclature of Medicine - Clinical Terms - SNOMED-CT
Systematized Nomenclature of Medicine - Clinical Terms - SNOMED-CT
Regulatory Problems
CPOE solves several regulatory problems such as illegibility and abbreviations, however, it solves huge, long-standning problem. Orders must be co-signed within a brief time period, usually less than 48 hours. Doctors often do not date and time their orders or their signatures, and it is common for physicians to sign orders weeks or even months after the fact. The regulators are aware of this but have no method to detect it. However, the CPOE will give the regulator the time to the second that the order was entered, and to the second when it was signed. Regulations will need to change, or a method such as email co-signing will need to be introduced.
AMDIS Response to the Federal Tamper-Resistant Rx Law
AMDIS Response to the Federal Tamper-Resistant Rx Law
Success Factors
CPOE and Meaningful Use
Implementation Strategies
Some organizations hire computer scribes who follow and enter orders for physicians. This allows reluctant physicians to also comply with CPOE.
Big Bang vs. Incremental Roll-out
In the 1990s, one site used a gradual implementation with the old TDS system. First, very useful things to physicians were introduced, such as x-ray reports, labs results, and rounding lists. This allowed everyone to get accustomed to the user interface. Then, the CPOE introduced electornic ordering with the least dangerous medications. By the time the pharmacy was also using CPOE, everyone in the hospital was accustomed to the interface. In fact, most saw the benefit of doing things online instead of the paper system. The entire process took about a year and a half to get to full CPOE (93% of all orders by physicians). Paper orders were a fall back, however, with great pressure not to use them. There is also a psychological benefit to a paper fall-back system. Physicians get angry when they are in a hurry and can't order because they can't navigate the system.
Whether, when, and how to remove paper from the process?
Whether, when, and how to remove paper from the process?
Physical Computing Environment
The physical computing environment is important. Effect of Computers in the Examination Room
Inpatient Setting
Wall Mounted Computers
Desktop Computers
Mobile Computers
Laptop Computers
Laptops allow access to both the CPOE and the electronic medical record.
Some issues are the weight, battery life, screen display, and durability.Tthere is typically a tradeoff between battery life, screen size, and weight; lightweight laptops suffer from inadequate battery life. In addition, larger screens, although they offer more space for CPOE and electronic charting, are heavier.
Several different approaches have been utilized in implementing laptop use:
- Rolling carts
- Hand held and
- Combinations of wall mounting and classic desktop configurations
Rolling carts take up significant space, are heavier and are less mobile. In addition, the battery charge is still limited. Chargers incorporated into the cart and multiple battery packs increase the time to next charge. [8]
Finally there is the real issue of security of data using hand held laptops and there have been numerous examples of loss of laptops containing patient information [9]. At a minimum, laptops that contain PHI should be required to be password protected. Additional security such as data encryption, the use of biometrics and technology such as smart cards should be strongly considered.
Tablet Computers
Handheld Computers
While handheld computers are good replacements for small reference books and interactive guides, they are unlikely to be significantly used in an integrated clinical record system. The interface is small and difficult to enter data into, security is more easily compromised, and wireless connections are slower than their Ethernet counterparts. [10]
Infection Control Concerns
There is considerable evidence and discussion of the keyboard as a source of pathogens; particularly the antibiotic resistant Methcillin Resistant Staph Aureus (MRSA) and Vancomycin Resistant Enterococcus (VRE). [11] MRSA may reside on medical surfaces for days to weeks. [12] Multiple precautions can be take to reduce transmission of infection. Physicians and nurses should be educated to the risks posed by the keyboard. Housekeeping staff should have keyboard cleaning techniques added the daily cleaning rounds. Standard housekeeping operating procedure should include cleaning keyboard surfaces every shift (every 8 hours) or at least every 12 hours.
Emergency Department Setting
Mobile Computers
Monitoring and Evaluation
Routine Methods
Study Designs
Leapfrog CPOE Standard
Consensus recommendations on Measurements
Consensus recommendations on Measurements
Unintended Consequences
Unintended errors fall into two main categories: [13]
- Error in entering and retrieving information
- Communication and coordination
Increased Resource Utilization
Increased Resource Utilization
Emotional Reactions
Increased Reliance on Technology
Increased Reliance on Technology
Prescribers’ Responses to Alerts During Medication Ordering in the Long Term Care Setting
Prescribers’ Responses to Alerts During Medication Ordering in the Long Term Care Setting
