Electronic Prescribing — Apply e-prescribing and faxing workflow rules to receiving and processing orders

For the majority of modern pharmacy history, prescriptions were transmitted as handwritten paper orders or verbal telephone calls from prescribers to pharmacists. This process was fraught with challenges: illegible handwriting contributed to medication errors, telephone orders consumed valuable staff time and introduced transcription mistakes, and paper-based systems lacked audit trails for regulatory oversight. By the late twentieth century, the healthcare industry recognized that modernizing prescription transmission was essential to improving patient safety and operational efficiency. The push toward electronic prescribing (e-prescribing) arose from this convergence of patient safety concerns, regulatory mandates, and advances in health information technology.

Despite the rapid adoption of e-prescribing, faxed prescriptions remain a prevalent transmission method in many practice settings. The coexistence of electronic and fax-based workflows raises critical regulatory questions: When is a faxed prescription legally equivalent to an original written order? Under what circumstances may controlled substances be faxed rather than presented on a tamper-resistant prescription blank? How do pharmacies verify the authenticity and validity of electronically transmitted orders? These questions form the core of what MPJE candidates must understand about receiving and processing prescriptions in contemporary pharmacy operations.

Before diving into specific workflow rules, it is essential to establish the foundational definitions and regulatory principles that govern electronic and faxed prescription transmission. Federal and state laws distinguish among several modes of prescription transmission, each carrying distinct legal implications for how pharmacies must receive, verify, and process orders. Understanding these categories is necessary because the permissible mode of transmission often depends on the drug's schedule, the clinical setting, and the jurisdictional requirements of the state in which the pharmacy operates.

The diagram above underscores a critical distinction that MPJE candidates must internalize: the legal status of a transmitted prescription—whether it constitutes an original or merely a copy—depends on the intersection of the transmission method and the drug schedule. For e-prescriptions transmitted through certified software and the Surescripts network, the electronic record is always the original, regardless of schedule. For faxed prescriptions, however, the legal status varies: non-controlled and Schedule III–V faxes generally serve as the original under federal law, while Schedule II faxes are treated as copies unless one of three narrow exceptions applies. The pharmacy's workflow must incorporate verification steps that account for these distinctions to ensure regulatory compliance and to protect patient safety.

E-Prescribing Transmission Mechanics

When a prescriber initiates an electronic prescription, the order is created within their certified Electronic Health Record (EHR) or standalone e-prescribing application. The software encodes the prescription data into a standardized message format defined by the National Council for Prescription Drug Programs (NCPDP) SCRIPT standard. This message includes all required elements of a valid prescription: patient demographics, prescriber identification (NPI and, for controlled substances, DEA number), drug name, strength, dosage form, quantity, directions for use, number of refills, and any special instructions. The message is then routed through the Surescripts network—the de facto national intermediary—to the designated pharmacy, where it is received by the pharmacy's dispensing software and queued for pharmacist review.

EPCS: Additional Layers of Security

For controlled substances (Schedules II through V), the DEA's EPCS rule (21 CFR Part 1311) imposes additional requirements on both the prescribing and receiving ends. On the prescriber side, the individual must complete identity proofing through a process that verifies their identity to a high degree of assurance. They must then use two-factor authentication each time they sign a controlled substance prescription—combining two of three credential categories: knowledge (password/PIN), possession (hard token, phone-based soft token), or inherence (biometric such as fingerprint). The prescribing application applies a digital signature to the prescription record, ensuring that any alteration in transit would be detectable. Both the prescribing application and the pharmacy application must have been audited and certified by a DEA-approved third-party auditor.

Fax Workflow Mechanics

Faxed prescriptions follow a simpler transmission pathway but carry more nuanced legal implications. The prescriber writes and signs a prescription on paper, then transmits a facsimile image to the pharmacy via fax machine or electronic fax service. Upon receipt, the pharmacy must verify several elements: the prescriber's identity and authority to prescribe, the completeness of the prescription (all required elements present), and the legibility of the document. For non-controlled substances, the fax serves as the original prescription in most jurisdictions. For Schedule III–V substances, federal law at 21 CFR §1306.21(a) allows faxed prescriptions to serve as the original. For Schedule II substances, the fax is generally only a copy used to expedite preparation; the pharmacy must obtain the original written, signed prescription from the patient before dispensing, unless one of the three recognized exceptions applies (compounded parenteral, LTCF, or hospice).

A pharmacist's ability to accept and process a prescription depends on matching the correct transmission method to the drug's schedule and the clinical context. The following table summarizes federal rules for each mode of transmission across different drug schedules. State laws may add further restrictions, which is why MPJE candidates must consult the specific regulations of the state for which they are sitting.

The decision tree above is a practical tool for pharmacy staff processing faxed Schedule II prescriptions. Note that in all three exception scenarios, the fax must originate from the prescriber or the prescriber's authorized agent—a patient cannot fax a Schedule II prescription to the pharmacy. Additionally, for hospice patients, the prescriber must annotate the prescription with "hospice patient," and for LTCF patients, the pharmacy should document the patient's facility information in its records. These details are frequently tested on the MPJE because they represent the boundary conditions where federal law permits flexibility in an otherwise rigid regulatory framework.

The following scenario walks through the steps a pharmacist would take when receiving multiple prescriptions via different transmission methods for the same patient, illustrating how workflow rules apply in practice.

Each prescription transmission method carries distinct advantages and limitations from legal, operational, and patient safety perspectives. Pharmacy operations must balance efficiency with compliance, and understanding these trade-offs is essential for both MPJE preparation and real-world practice.

The workflow rules governing e-prescribing and faxing are not isolated regulatory provisions—they connect to broader themes in pharmacy law that are heavily tested on the MPJE. Understanding how these rules interface with other regulatory frameworks strengthens a candidate's ability to answer complex, multi-layered questions.

Looking forward, the pharmacy profession is moving steadily toward universal e-prescribing. The SUPPORT Act's federal EPCS mandate for Medicare Part D, combined with the proliferation of state-level mandates, signals that paper-based and fax-based prescribing will continue to decline. However, fax transmission remains a reality in many practice settings, particularly in rural areas, long-term care, and during system outages. For MPJE preparation, candidates should expect questions that test their ability to navigate the intersection of federal floor requirements and state-specific restrictions, apply the Schedule II fax exceptions correctly, and understand the EPCS authentication framework.