- Computer physician order entry
Computerized physician order entry (CPOE), is a process of electronic entry of medical practitioner instructions for the treatment of patients (particularly
hospitalized patients) under his or her care. These orders are communicated over a computer networkto the staff (nurses, therapists, pharmacists) or to the departments ( pharmacy, laboratory or radiology) responsible for fulfilling the order. CPOE decreases delay in order completion, reduces errors related to handwriting or transcription, allows order entry at point-of-care or off-site, provides error-checking for duplicate or incorrect doses or tests, and simplifies inventory and posting of charges.Although manufacturers use the term Computerized Physician Order Entry, a more accurate term would be Computerized Prescriber Order Entry.
Terminology related to order entry
The application responding to, "i.e.", performing, a request for services (orders) or producing an observation. The filler can also originate requests for services (new orders), add additional services to existing orders, replace existing orders, put an order on hold, discontinue an order, release a held order, or cancel existing orders.
A request for a service from one application to a second application. The second application may in some cases be the same; "i.e.", an application is allowed to place orders with itself.
Order detail segment
One of several segments that can carry order information. Future ancillary specific segments may be defined in subsequent releases of the Standard if they become necessary.
The application or individual originating a request for services (order).
Placer order group
A list of associated orders coming from a single location regarding a single patient.
Features of CPOE systems
Features of the ideal computerized physician order entry system (CPOE) include:;Ordering :Medical practitioner orders are standardized across the organization, yet may be individualized for each medical practitioner. Orders are communicated to all departments and involved caregivers, improving response time and avoiding scheduling problems and conflict with existing orders.;Patient-centered
decision support:The ordering process includes a display of the patient's medical history and current results and evidence-based clinical guidelines to support treatment decisions. Often uses medical logic moduleand/or Arden syntaxto facilitate fully integrated Clinical Decision Support Systems (CDSS).; Patient safetyfeatures : The CPOE system allows real-time patient identification, drug dose recommendations, adverse drug reactionreviews, and checks on allergies and test or treatment conflicts. Physicians and nurses can review orders immediately for confirmation.;Intuitive Human interface:The order entry workflow corresponds to familiar "paper-based" ordering to allow efficient use by new or infrequent users.;Regulatory compliance and security :Access is secure, and a permanent record is created, with electronic signature.;Portability : The system accepts and manages orders for all departments at the point-of-care, from any location in the health system (physician's office, hospital or home) through a variety of devices, including wireless PCs and tablet computers.;Management :The system delivers statistical reports online so that managers can analyze patient census and make changes in staffing, replace inventory and audit utilization and productivity throughout the organization. Data is collected for training, planning, and root cause analysisfor patient safetyevents.;Billing :Documentation is improved by linking diagnoses ( ICD-9-CMcodes) to orders at the time of order entry to support appropriate charges.
Patient safety benefits of CPOE
In the past, medical practitioners have traditionally hand-written or verbally communicated orders for patient care, which are then transcribed by various individuals (such as unit clerks,
nurses, and ancillary staff) before being carried out. Handwritten reports or notes, manual order entry, non-standard abbreviations and poor legibility lead to errors and injuries to patients, according to a 1999 Institute of Medicine (IOM) report. [cite web | last=Institute of Medicine | first= | year=1999 | url=http://fermat.nap.edu/catalog/9728.html#toc | title=To Err Is Human: Building a Safer Health System (1999) | publisher=The National Academies Press | accessdate=2006-06-20] A follow up IOM report in 2001 advised use of electronic medication ordering, with computer- and internet-based information systems to support clinical decisions. [cite web | last=Institute of Medicine | first= | year=2001 | url=http://www.nap.edu/books/0309072808/html | title=Crossing the Quality Chasm: A New Health System for the 21st Century | publisher=The National Academies Press | accessdate=2006-06-29] Prescribing errors are the largest identified source of preventable hospital medical error. A 2006 report by the Institute of Medicine estimated that a hospitalized patient is exposed to a medication error each day of his or her stay. [cite journal | year = 2006 | title = Preventing Medication Errors | last = The Institute of Medicine | journal = The National Academies Press | url = http://www.nap.edu/catalog/11623.html | accessdate = 2006-07-21 ] Computerized physician order entry (CPOE) reduces the medication error rate by 80%, and by 55% for errors with serious potential patient harm. [cite journal | author = David W. Bates, MD, et al | year = 1998 | title = Effect of Computerized Physician Order Entry and a Team Intervention on Prevention of Serious Medication Errors | journal = JAMA | volume = 280 | pages = 1311–1316 | url = http://jama.ama-assn.org/cgi/content/abstract/280/15/1311 | accessdate = 2006-06-20 | doi = 10.1001/jama.280.15.1311 | format = abstract | pmid = 9794308] CPOE systems can provide automatic dosing alerts (for example, letting the user know that the dose is too high and thus dangerous) and interaction checking (for example, telling the user that 2 medicines ordered taken together can cause health problems). In this way, specialists in pharmacy informaticswork with the medical and nursing staffs at hospitals to improve the safety and effectiveness of medication use by utilizing CPOE systems.
Risks of CPOE
CPOE presents several possible dangers by introducing new types of errors. [cite journal | author = Ross Koppel, PhD, et al | year = 2005 | title = Role of Computerized Physician Order Entry Systems in Facilitating Medication Errors | journal = JAMA | volume = 293 | pages = 1197–1203 | url = http://jama.ama-assn.org/cgi/content/abstract/293/10/1197 | accessdate = 2006-06-28 | doi = 10.1001/jama.293.10.1197 | format = abstract | pmid = 15755942 ] [cite news | last = Lohr | first = Steve | title = Doctors' Journal Says Computing Is No Panacea | publisher = The New York Times | date =
2005-03-09| url = http://www.nytimes.com/2005/03/09/technology/09compute.html?ei=5089&en=402b792e748d99a2&ex=1268110800&adxnnl=1&partner=rssyahoo&adxnnlx=1150474153-xVix1BcYkvTKJpuLyHStrQ | accessdate = 2006-07-15 ] In other settings, shortcut or default selections can override non-standard medication regimens for elderly or underweight patients, resulting in toxic doses. Frequent alerts and warnings can interrupt work flow, causing these messages to be ignored or overridden. CPOE and automated drug dispensing was identified as a cause of error by 84% of over 500 health care facilities participating in a surveillance system by the United States Pharmacopoeia. [cite web | last=Santell | first=John P | year=2004 | url=http://www.usp.org/pdf/EN/patientSafety/slideShows2004-12-09.pdf | title=Computer Related Errors: What Every Pharmacist Should Know | format = PDF | publisher=United States Pharmacopia | accessdate=2006-06-20] Introducing CPOE to a complex medical environment requires ongoing changes in design to cope with unique patients and care settings, close supervision of overrides caused by automatic systems, and training, testing and re-training all users.
CPOE systems can take years to install and configure. Despite ample evidence of the potential to reduce medication errors, adoption of this technology by medical practitioners and hospitals in the United States has been slowed by resistance to changes in medical practitioners' costs and training time involved, and concern with interoperability and compliance with future national standards. [cite news | last = Kaufman | first = Marc | title = Medication Errors Harming Millions, Report Says. Extensive National Study Finds Widespread, Costly Mistakes in Giving and Taking Medicine | pages = A08 | publisher = The Washington Post | date =
2005-07-21| url = http://www.washingtonpost.com/wp-dyn/content/article/2006/07/20/AR2006072000754.html | accessdate = 2006-07-21 ] According to a study by RAND Health, the US healthcare system could save more than 81 billion dollars annually, reduce adverse medical events and improve the quality of care if it were to widely adopt CPOE and other health information technology. An early success with CPOE by the United States Department of Veterans Affairs(VA) is the Veterans Health Information Systems and Technology Architectureor VistA. A graphical user interfaceknown as the Computerized Patient Record System (CPRS) allows health care providers to review and update a patient’s record at any computer in the VA's over 1,000 healthcare facilities. CPRS includes the ability to place orders by CPOE, including medications, special procedures, x-rays, patient care nursing orders, diets, and laboratory tests. As of 2005, one of the largest projects for a national EHR is by the National Health Service(NHS) in the United Kingdom. The goal of the NHS is to have 60,000,000 patients with a centralized electronic health recordby 2010. The plan involves a gradual roll-out commencing May 2006, providing general practices in England access to the National Programme for IT(NPfIT). The NHS component, known as the "Connecting for Health Programme", [NHS Connecting for Health: [http://www.connectingforhealth.nhs.uk/delivery/ Delivering the National Programme for IT] Retrieved August 4, 2006] includes office-based CPOE for medication prescribing and test ordering and retrieval, although some concerns have been raised about patient safetyfeatures. [cite journal | author = C J Morris, B S P Savelyich, A J Avery, J A Cantrill and A Sheikh | year = 2005 | title = Patient safety features of clinical computer systems: questionnaire survey of GP views | journal = Quality and Safety in Health Care | volume = 14 | pages = 164–168 | url = http://qhc.bmjjournals.com/cgi/content/full/14/3/164 | accessdate = 2006-07-08 | doi = 10.1136/qshc.2004.011866 | pmid = 15933310 ]
Continuity of Care Record
Electronic health record
Electronic medical record
Veterans Health Information Systems and Technology Architecture(VistA)
* [http://www.cchit.org/ Certification Commission for Healthcare Information Technology (CCHIT)]
* [http://healthit.ahrq.gov/cpoe AHRQ National Resource Center for Health IT]
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