Medication errors in care homes: how to record, report and learn

When a medication error happens in a care home, the order is always the same: make the resident safe, record what happened the same day, report it to the manager and to the prescriber or pharmacist, review it for the root cause, and notify CQC where the error caused harm. The record shows all five steps with times. The review changes something so the same error is less likely next week. Every error, including the ones caught before they reached the resident, goes through the same process.

The short answer

A medication error is any preventable event where a medicine was not given as prescribed, whether that is the wrong resident, medicine, dose, time or route, a missed or duplicated dose, a medicine given after it was stopped, a PRN outside its protocol, or a recording mistake on the MAR chart. What matters most is what happens next. Make the person safe and get clinical advice from the GP, pharmacist or NHS 111. Record the error on an incident form and on the MAR. Report it to the manager and, where a dose was affected, to the prescriber or pharmacist. Tell the resident and their representative. Review it within days for the root cause, which is usually a system problem rather than a careless person, and change the system. Notify CQC where the error caused serious harm or is part of a safeguarding concern. Then look at the pattern across the month.

Why medication errors are read so closely

Medicines are the area of care home practice most likely to produce a Regulation 12 breach, and errors are where inspectors look first because they show whether the home is honest with itself. A home with no recorded medication errors in a year is not a safe home; it is a home where errors are not being recorded. Inspectors know this, and a blank error log raises more questions than a full one.

The record of an error tells an inspector how staff responded under pressure, whether the manager knew, whether the prescriber was involved, whether the person and family were told, and whether anything changed. A well-handled error is evidence of a safe service. A concealed one, or one that was recorded and then ignored, is evidence of the opposite.

CQC medication administration guidelines expect providers to have a clear process for errors, to record and review them, to learn from them, and to be open with people about them under the duty of candour. That is the standard this article is built around.

At a glance: what to do after a medication error

What counts as a medication error

Staff sometimes hesitate to record an event because they are not sure it is an error. Make the definition wide and write it in the policy. Any of the following is recorded and reviewed:

• Wrong resident, wrong medicine, wrong dose, wrong route, wrong formulation.
• Wrong time, meaning outside the window your policy sets, usually one hour either side.
• Missed dose with no valid reason recorded.
• Dose given twice.
• Medicine given after it was stopped, or a new medicine not started when it should have been.
• PRN given outside the protocol, or too soon after the last dose.
• Controlled drug discrepancy.
• Medicine given without consent or covertly without a documented best interests decision.
• Transcription error on a handwritten MAR chart.
• Recording error: dose given but not signed, or signed but not given.
• Storage error, such as a fridge out of range or medicines left unlocked.
• Dispensing error by the pharmacy, whether or not a dose was given.

Near misses, where the error was caught before it reached the resident, count. They are the cheapest learning you will ever get, and a home that records near misses is one where staff trust the process.

Step one: make the person safe

Everything else waits until the resident is safe. Check how they are: alert, breathing normally, any symptoms. Then contact the GP, the supplying pharmacist or NHS 111 immediately and give them the facts: the resident's name and date of birth, the medicine and dose given or missed, when, and the other medicines the person takes. Ask what to do. The advice might be observations for a period, a specific check such as blood glucose or blood pressure, an ambulance, or simply reassurance. Follow it and record it.

Call 999 without waiting for advice if the resident has any acute symptoms: reduced consciousness, breathing difficulty, chest pain, a seizure, severe drowsiness, or anything that frightens you. Insulin, opioids, anticoagulants, sedatives, antipsychotics, lithium and digoxin errors are the ones most likely to need urgent action, and an overdose of any of them is an emergency.

Do not give any further doses until the advice has been received. Keep the packaging and any remaining medicine in case the pharmacist needs it.

What to do if the wrong medication is given to a resident

This is the search most managers make at 9pm on a Sunday, so here it is in order. Stop the round. Check the resident and stay with them. Identify exactly what was given: the medicine, strength, dose and time, and to whom. Identify what should have been given. Contact NHS 111, the out-of-hours GP or the pharmacist and tell them all of it, including the resident's own medicines and any allergies. Follow the advice and record the time, the service, the name of the adviser and the instruction.

If the medicine belonged to another resident, that resident has now missed a dose, so check with the same adviser whether it can be given late. Tell the manager on call. Tell the resident and, unless they have capacity and object, their family. Record everything on the incident form and annotate the MAR for both residents. Do not let the staff member go home without writing their account.

The next morning the manager reviews it, arranges a competency check for the staff member, and looks for the cause. In most cases it is two residents with similar names, an interrupted round, or a photo missing from the MAR.

Step two: record it

The incident record is written on the same shift by the person who found or made the error, in their own words, facts before opinions. It covers the resident, the medicine, what should have happened, what actually happened, when it was discovered and by whom, the resident's condition, who was contacted and what they advised, what was done and the outcome so far.

The MAR chart is annotated too. The dose in question is marked with the correct code and a note that refers to the incident record. Never alter or overwrite a MAR entry; strike through, initial and date if paper, or use the correction function if electronic. An eMAR keeps the original entry and the correction with an audit trail, which is exactly what an inspector or a coroner wants.

Record near misses the same way but mark them as such. A pharmacy dispensing error caught on receipt is a near miss that still gets a form, because the pattern matters.

Step three: report it

Three reports happen the same day. The manager or on-call manager is told, so the review can be planned and any wider risk managed. The prescriber or pharmacist is told wherever a dose was affected, because they may need to adjust the next dose, arrange monitoring or update the record. The resident and their representative are told what happened, in plain language, with an apology, and the conversation is recorded.

Where the error caused harm, the duty of candour under Regulation 20 applies formally: the notification to the person is made in person, followed in writing, and includes what happened, what is being done, and an apology. Keep the letter with the incident.

Some errors need reporting beyond the home. Safeguarding is raised with the local authority where the error suggests neglect or where the resident was harmed. The police are involved where medicines have gone missing in a way that suggests theft or where a deliberate act is suspected. Dispensing errors go back to the pharmacy in writing. Adverse reactions to a medicine go to the MHRA Yellow Card scheme.

When to notify CQC

Not every error is notified. The registration regulations require notification of incidents that cause serious injury, of abuse or allegations of abuse, and of incidents reported to or investigated by the police. A medication error that caused harm meeting the serious injury definition, such as a hospital admission, is notified. An error that forms part of a safeguarding concern is notified. An error involving theft or a deliberate act is notified. An error with no harm and no safeguarding element is recorded and reviewed but not notified.

Make the decision every time and record it, including the decision not to notify and why. A home that can show the reasoning is in a much better position than one that simply never thought about it. An incident review that carries a CQC-notifiable flag as part of CQC compliance forces the question at the right moment.

Submit without delay, which means the same or next working day, and keep the reference. See CQC notifications: what to report and when for the full list.

Step four: review and learn

The registered manager or deputy reviews every error within 72 hours. The purpose is to find out why it happened and what would make it less likely, not to decide who is to blame. Ask why repeatedly. The dose was missed. Why? The carer was called away mid-round. Why? A resident fell in the lounge and there was nobody else on the floor. Why? Two staff were on break at the same time. Now you have a rota problem, not a carer problem.

Look at the whole chain: the prescription, the pharmacy, the MAR chart, the storage, the round, the staff member's training and competence, the environment, the interruptions, the handover and the communication of changes. Record the contributing factors under those headings.

Then record actions that are specific, owned and dated. Rounds to be protected with a tabard and a do-not-disturb rule from 1 October. Photo added to MAR for residents with similar names. Pharmacy asked to print MAR charts rather than the home handwriting them. Review at the November governance meeting whether missed doses have reduced.

Prescription errors and pharmacy mistakes

Not every error starts in the home. Prescription errors happen when the GP issues the wrong dose, omits a medicine after a hospital discharge, or fails to communicate a change. Pharmacy mistakes include dispensing the wrong strength, the wrong resident's name on a label, a MAR chart that does not match the prescription, or a missing item in the monthly delivery.

The home's defence is the check on receipt. Every delivery is checked item by item against the MAR and the prescription by a trained member of staff before anything is put away, and discrepancies are raised with the pharmacy the same day and recorded. Every hospital discharge is reconciled against the previous MAR within 24 hours, with the GP asked to confirm any change. Every new prescription is checked against the resident's allergies and existing medicines.

Record prescription and dispensing errors as near misses even when nothing reached the resident. If a pharmacy makes the same mistake three times, that is a conversation with the superintendent pharmacist, with your log as evidence.

Missed medication

Missed doses are the most common medication error in most homes and the most likely to be under-recorded, because a blank box on a MAR chart does not look like an incident. It is one. A missed dose is any dose that was due and not given without a recorded reason such as refusal, a clinical instruction to withhold, or the resident being away.

When a missed dose is found, check with the pharmacist or GP whether it can be given late or must be skipped; the answer depends on the medicine and the time since the dose was due. Record the advice and what was done. Some medicines, including Parkinson's medication, anticonvulsants, insulin and anticoagulants, are time-critical and a missed dose is a clinical matter within hours.

Look at the causes across the month. Missed doses cluster at particular rounds, on particular shifts and with particular staff, and the analysis usually points to staffing, interruptions or a handwritten chart nobody could read. An electronic system that alerts when a round is running late or a dose is unsigned removes most of them.

PRN, covert medicines and consent errors

PRN errors are the second most common group. A PRN given without checking the last dose, given for a reason not in the protocol, given at the maximum frequency for weeks with no review, or not given when the protocol said it should have been. Each is an error. The fix is a protocol for every PRN that says what it is for, the dose and interval, the maximum in 24 hours, the signs that mean it is needed and what to try first, and a MAR that shows the time of the last dose before the next is given. See PRN medication protocols.

Giving a medicine covertly, hidden in food or drink, without a documented capacity assessment, a best interests decision involving the prescriber and pharmacist, and a care plan entry, is an error and potentially a safeguarding matter. So is administering to a resident with capacity who has refused. Record refusals with the correct code and the reason, tell the GP if refusals persist, and never disguise a refused dose as given.

Supporting the staff member

Most errors are made by good staff working in imperfect systems, and the way the manager responds to the first error a carer makes determines whether the next one is reported. Talk to them the same day. Ask what happened and listen. Make sure they have written their account. Tell them what happens next: a competency check before they administer again, a supervision meeting, and a review that looks at the system as well as at them.

Do not suspend as a reflex. Stopping someone from administering until competency is reassessed is proportionate; sending them home for a single error with no harm is not, and it teaches the whole team that honesty is punished. Reserve disciplinary action for concealment, falsified records, repeated errors after retraining, or deliberate acts.

Record the competency check and the supervision in the staff file. When an inspector asks what happened after the error, the answer that shows a home learning is: we checked their competence, we supported them, and we fixed the system that let it happen. Your HR records should hold that trail.

Competency and retraining

Every member of staff who administers medicines has a documented competency assessment on induction, at least annually, and after any error. The assessment is practical: the assessor watches a round and checks the six rights, the MAR, the controlled drugs procedure, PRN decisions, storage and recording. A training certificate on its own is not competence.

After an error, the retraining is targeted at what went wrong. A transcription error means a session on the transcription procedure and a second-checker rule. A PRN error means the protocols and the last-dose check. A wrong-resident error means identification and photographs. Sign the person off again before they administer alone and record the date.

If the same person makes a similar error again after retraining, the conversation changes, and the record of the first error and the support given is what makes a fair process possible.

Monthly error analysis

Once a month, list every error and near miss by resident, medicine, type, time, shift, staff member and cause. Then look at the pattern. Common findings are missed doses on the morning round when one carer is doing thirty residents, errors clustering on nights, a spike after a change of pharmacy, PRN errors for one resident whose protocol is unclear, and transcription errors from handwritten charts.

Write a short analysis: numbers, the pattern, what you think is behind it and what is changing. Share it at the staff meeting and keep it in the governance file. Track the trend month on month. A rise in recorded errors after you introduce a no-blame process is a good sign, not a bad one, and you should be able to explain that to an inspector.

Feed the analysis into the medication audit; see the monthly medication audit checklist. The audit checks the system; the error analysis checks whether the system is working.

Preventing the next one

The interventions that reduce errors most are unglamorous. Protected rounds with a visible signal that the person administering is not to be interrupted. Pharmacy-printed MAR charts, or an electronic MAR, so nothing is transcribed by hand. Photographs on every MAR. A second-checker rule for any handwritten entry, for controlled drugs and for insulin and warfarin. PRN protocols for every PRN. A reconciliation check on every hospital discharge and every delivery. Enough staff on the floor that one fall does not stop the round.

An electronic MAR adds prompts at the point of administration: the right resident by photo, the dose due, the time window, the last PRN dose, the stock count, the allergy warning. It also makes missed doses visible in real time rather than at the monthly audit. It does not remove the need for competent staff, but it takes away most of the ways a competent person is tripped up. Kiwi's eMAR runs rounds by resident with the MAR, stock, controlled drugs with a witness and PRN protocols in one place, which is where most of the error routes described above are closed. If you want to see it against your own rounds, book a demo.

Learning disability and mental health services

In these services the medicines are often psychotropic, the residents may be on high doses for many years, and the risks of an error are different. A missed antipsychotic or mood stabiliser can precipitate relapse; a double dose can cause serious sedation; a missed anticonvulsant can cause a seizure. Time-critical medicines need to be identified in the care plan and prioritised on the round.

Consent is more often in question. Residents may have fluctuating capacity, may refuse for reasons connected to their condition, or may be on medicines under the Mental Health Act. Errors around consent, covert administration and refusal need particular care in recording, and the review should look at whether the capacity assessment and best interests process were followed.

STOMP, the national programme to stop over-medication of people with a learning disability and autistic people, means every psychotropic should have a documented reason and a review date. An error review is a good moment to ask whether the medicine should still be prescribed at all.

Error record checklist

Before you close an error review, check the record contains all of the following.

1. Resident, medicine, dose, route and time affected.
2. What should have happened and what actually happened.
3. When and how it was discovered and by whom.
4. The resident's condition and any observations, with times.
5. Clinical advice sought, from whom, at what time, and what was advised.
6. Actions taken and the outcome for the resident.
7. Manager informed, with time.
8. Resident and representative informed, with time, and the candour letter if harm.
9. MAR annotated with a reference to the incident.
10. Root cause review with contributing factors under system headings.
11. Actions with owners and dates.
12. Staff competency check and supervision recorded.
13. CQC notification decision recorded, and reference if submitted.
14. Safeguarding decision recorded, and reference if raised.

Common mistakes

• Errors with no harm not recorded because nothing happened.
• Missed doses left as blank boxes on the MAR rather than coded and reported.
• Clinical advice not sought because the staff member did not want to bother the GP at night.
• The resident and family not told, or told days later.
• The review blaming the carer and changing nothing about the system.
• Actions written and never checked, so the same error recurs.
• Staff suspended for honest errors, after which errors stop being reported.
• No decision recorded on CQC notification, so a notifiable error is missed.

What good looks like on inspection day

An inspector will ask how many medication errors you have had in the last twelve months and what you learned. They will expect a number, a pattern and a change. They will pick two or three errors and follow each from the incident form through the clinical advice, the candour record, the review, the actions and the competency check. They will look at the MAR for the dose in question and expect to see the annotation.

They will ask a carer what they would do if they realised they had given the wrong medicine, and compare the answer to your policy. They will ask whether errors are discussed at staff meetings and look for the minutes. They will check that any error involving harm was notified and that the safeguarding decision was recorded.

Be ready to talk about a specific error, what it taught you and what is different now. That honesty is worth more than any policy.

Final conclusion

Medication errors will happen in every care home. What distinguishes a safe home is not the absence of errors but the response to them: the resident made safe within minutes, the record written the same shift, the prescriber and the family told, the review looking for the system failure rather than the scapegoat, the change made and checked, and the notification decision made and recorded every time. Build that process, use it for near misses as well as harm, and the error log becomes some of the strongest evidence you have that medicines in your home are managed safely.

Frequently asked

What counts as a medication error in a care home?

Any preventable event where a medicine was not given as prescribed: the wrong resident, wrong medicine, wrong dose, wrong time, wrong route, a missed dose, a dose given twice, a medicine given after it was stopped, a PRN given outside its protocol, or a recording error on the MAR. Near misses, where the error was caught before the medicine reached the resident, count too and should be recorded.

What do you do if the wrong medication is given to a resident?

Make the resident safe first. Check how they are, then contact the GP, pharmacist or NHS 111 straight away with the name of the medicine, the dose given and the resident's other medicines, and follow their advice, which may include observations or an ambulance. Then record the error, tell the manager and the resident or their representative, and review it.

Do I need to notify CQC of every medication error?

No. Notify CQC where the error caused harm that meets the serious injury definition, where it is part of a safeguarding concern, or where the police are involved. Every error is recorded and reviewed internally regardless, and the pattern of errors should be visible in your governance reports.

Should a staff member be suspended after a medication error?

Not automatically. Most errors are system failures, and suspending someone for a single error with no harm drives errors underground. Stop them administering until a competency check is done, support them, and investigate fairly. Reserve disciplinary action for concealment, repeated errors after retraining, or deliberate acts.

What is a missed medication and how should it be recorded?

A missed medication is a dose that was due and not given, with no valid reason such as refusal or a clinical instruction. Record it on the MAR with the correct code and a note, tell the senior, check with the pharmacist or GP whether the dose can be given late or should be skipped, and record the advice and what was done.

What should I do if the pharmacy gives the wrong medication?

Do not administer it. Quarantine the item, contact the pharmacy immediately, record the error as a near miss or dispensing error, and ask the pharmacy for a replacement and a written account. If a dose was given before the error was spotted, treat it as a medication error and contact the GP. Report dispensing errors to the pharmacy superintendent if they recur.

What are common medication error examples in care homes?

The most common are missed doses at busy rounds, doses given late outside the time window, transcription errors when a new MAR is written by hand, PRN given without checking the last dose, medicines given after the GP stopped them, and warfarin or insulin doses not matching the latest instruction. Most trace back to interruptions, handwritten charts or poor communication of changes.

Sources

• NICE SC1 Managing medicines in care homes
• NICE NG5 Medicines optimisation: the safe and effective use of medicines
• CQC: Medicines in health and adult social care guidance
• Health and Social Care Act 2008 (Regulated Activities) Regulations 2014, Regulation 12 Safe care and treatment and Regulation 20 Duty of candour
• CQC: Statutory notifications guidance for providers
• Royal Pharmaceutical Society: The Handling of Medicines in Social Care
• MHRA Yellow Card scheme