E-Prescribing and Computerized Physician Order Entry(CPOE)
E-Prescribing (eRx) can be one of the most satisfying tasks for the physician because it saves the duplication of effort involved in hand-writing prescriptions, updating the list of medications, and including the changes in the office notes. E-Prescribing can also be frustrating when the EHR does not provide adequate data entry support. E-Prescribing offers the opportunity to reduce the
medication errors that can result from pharmacists misreading prescriptions, dispensing an incorrect dose, or even prescribing the wrong drug because its name was similar to the name of the drug the physician actually intended.
The back-end process of e-prescribing sends discrete electronic data to a central hub, which then distributes the prescription message to the target pharmacy electronically (or via fax, if the target pharmacy lacks e-prescribing capabilities). The pharmacy can also
send messages for renewal request to the prescribing physician. A new feature, not yet widely adopted, allows prescribers to send
a message electronically to a pharmacy to cancel a previously prescribed medication or prescription.
)** Clinical Scenario — New Prescription for
Newly Diagnosed Diabetes**
*Mr. Martin is a 53-year-old construction supervisor.
Three months ago, he was diagnosed with diabetes by Dr. Barnes, his family physician. Despite some healthy lifestyle changes, his weight is unchanged.
His fingerstick blood sugars are improving, but are still too high at around 200. His goal is 80-140.
)Dr. Barnes wants Mr. Martin to take a new
medication named metformin to control his blood sugar. Together they look at the EHR screen and see that metformin is on Mr. Martin’s insurance formulary, and has the lowest-tier co-pay. Both are pleased. Mr. Martin wants to start with just a 30 day prescription from his local pharmacy in case he has any side-effects. The new prescription is sent electronically to the local pharmacy.*
)
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