What is an eMAR?
An eMAR is an electronic medication administration record: the live record of which doses were given to a patient, by whom, at what time, and what happened when one was not. It replaces the paper MAR chart, and its value depends almost entirely on whether administrations are written to it automatically at the moment they happen or typed in afterwards.
An eMAR fed by a bedside scan is a safety system. An eMAR typed up at the end of a round is a legible paper chart.
What does an eMAR contain?
The active medication orders for a patient, the schedule of when each is due, and a record of each administration event — given, refused, held, omitted — with the time, the person and the reason where one applies.
The part that distinguishes a good one is the treatment of non-administration. A paper MAR tends to record what was given and leave a blank where something was not, so the difference between "the patient refused", "the dose was held pending a blood result" and "nobody got to it" collapses into an empty box. Those are three completely different clinical events and one of them is an incident.
How is an eMAR different from a paper MAR?
Legibility and availability are the obvious wins and the least interesting. A chart nobody can misread, available in more than one place at once, that cannot be left in a different bay.
The real differences are structural. The record is timestamped by the system rather than by the person writing it, so "given at 08:00" means the event was recorded at 08:00 rather than that someone wrote 08:00. It can be queried, so a question like "how many doses of this drug were omitted on this unit last month, and why" is a report rather than a project. And it updates against the live order, so a discontinued medication disappears from the due list instead of remaining on a printed chart until the chart is reprinted.
It also removes a specific and underrated hazard: the transcription of orders onto the MAR. Every hand-copied chart is a re-entry of the order with a fresh opportunity to introduce an error, performed under time pressure and rarely double-checked.
What does an eMAR not do?
It does not verify anything by itself. An eMAR records what someone tells it happened. If the nurse selects the wrong patient in the software, the eMAR faithfully documents a dose against the wrong person and looks perfect afterwards — arguably worse than a paper equivalent, because the electronic record carries an air of authority a scrawled chart does not.
It does not fix retrospective charting. A record completed at the end of a round is a document about what was intended, and moving it onto a screen does not change that. The timestamp will be accurate about when it was typed, which is exactly the information nobody needed.
And it does not make the medication safe to give. Clinical appropriateness is upstream, at verification.
Which is why the eMAR question is really a question about its inputs. An eMAR fed by a bedside barcode scan gets a record that is a by-product of a verified action. An eMAR fed by typing gets a record that is an account of an action. The document looks identical and the two are not the same artefact.
What should an eMAR integrate with?
The order source, so it reflects the live verified order rather than a snapshot. This is the integration that most often turns out to be partial, and partial here means a discontinued drug remains due.
The administration check, so the record is written from the scan.
The dispensing record, so what was released and what was administered can be reconciled without a person doing it manually. This is where controlled-substance discrepancies are found early rather than at a count.
And — the one almost nobody asks about — the discharge record, so the medication a patient actually received in their final days as an inpatient is available to whoever follows up with them. That handoff is currently a summary written by a person, and everything the eMAR knew in detail is compressed into it.
Frequently asked
- What is an eMAR?
- An electronic medication administration record — the live record of which doses were given to a patient, by whom, at what time, and what happened when one was not given. It replaces the paper MAR chart, and its value depends almost entirely on whether administrations are written to it automatically from a bedside scan or typed in afterwards.
- What is the difference between an eMAR and a paper MAR?
- The system timestamps the record rather than the person writing it, so the time reflects when the event was recorded. It can be queried, so questions like "how many doses were omitted on this unit last month and why" become reports. It updates against the live order, so a discontinued drug leaves the due list. And it removes the hand transcription of orders onto a chart, which is a re-entry of the order with a fresh chance to introduce an error.
- Does an eMAR prevent medication errors?
- Not on its own. An eMAR records what someone tells it happened — if the nurse selects the wrong patient in the software, it documents the dose against the wrong person and looks perfect afterwards. The safety comes from what feeds it: an eMAR written from a bedside barcode scan records a by-product of a verified action, while one filled in by typing records an account of an action.
- What should an eMAR integrate with?
- The order source, so it reflects the live verified order rather than a snapshot; the barcode administration check, so the record is written from the scan; the dispensing record, so releases and administrations reconcile without manual work; and the discharge record, so the medication a patient actually received is available to whoever follows up after they leave.