Preventing Medication Errors in Care Homes

Medication errors rank among the most common adverse events in elderly care homes — and they are largely preventable. When multiple residents each take five or more medications daily, even a small gap in the administration process creates real risk. This guide sets out the practical measures that care home operators and team leaders can put in place today to make safe medication administration the rule, not the exception.

Common Medication Errors in Residential Care

Understanding where errors actually happen is the first step to preventing them:

Omission or duplication — a dose is skipped or given twice because there is no reliable record of what was given and when
Wrong dose — a transcription error or misread prescription leads to a higher or lower dose than intended
Wrong resident — residents with similar names or rooms are confused, especially when staff rely on visual recognition alone
Wrong time — a medication meant to be given before food is given after, affecting absorption or safety
Wrong route — an oral medication is given via a PEG tube without checking compatibility, or vice versa

Most individual errors do not cause immediate serious harm, but errors involving high-alert medications can have rapid and severe consequences. They also attract scrutiny during HSS (สบส.) regulatory inspections.

The 5 Rights: A Non-Negotiable Checklist Before Every Dose

The 5 Rights of Medication Administration is an internationally recognised framework recommended by the World Health Organization and endorsed by Thailand’s Ministry of Public Health. Every person administering medication should run through all five before handing over a dose:

Right resident — verify the full name against the medication record or name band; never rely on face recognition alone
Right medication — confirm the drug name on the packet matches the prescriber’s order exactly
Right dose — check the quantity and strength (e.g. mg, ml) against the current prescription, not a historical copy
Right route — oral, PEG, topical, or other — do not assume it matches the previous dose
Right time — administer at the prescribed time, noting whether the drug must be given before or after food

Many facilities add a sixth right: right documentation — record immediately after giving, never in advance. Pre-recording is one of the most common causes of accidental duplication.

High-Alert Medications That Need Extra Safeguards

High-alert medications are drugs where an administration error is more likely to cause significant patient harm than errors with other medications. Common examples in elderly residential care include:

Warfarin — narrow therapeutic window; always check against the most recent INR result before administering
Insulin — dosing errors can cause rapid hypoglycaemia, which is particularly dangerous in frail elderly residents
Benzodiazepines (sedatives and anxiolytics) — increase fall risk substantially in older adults; confirm dose and timing carefully
Antihypertensives — overdose can cause acute hypotension, dizziness, and falls

For all high-alert medications, establish a mandatory independent double-check process: two staff members separately verify the drug, dose, resident, and route before administration. Document that both checks were completed.

Storage, Organisation, and Handover

Physical organisation matters as much as process:

Store each resident’s medications separately — individual labelled drawers or blister-pack systems reduce picking errors
Re-label clearly whenever a prescription changes; remove or destroy outdated supplies
Store medications at the correct temperature as specified on packaging
Lock the medication room or trolley and restrict access to authorised staff
At every shift handover, verbally brief the incoming team on any recent prescription changes and any high-alert medication due within the next few hours

Linking medication lists to a resident’s care record — as Caleo’s resident records module does — gives every team member a single, up-to-date view of what has been given and what is due, reducing the guesswork that comes with paper medication administration records (MARs).

Reporting Errors and Near Misses

A just culture around error reporting is as important as the processes themselves. When an error or near miss occurs, teams should report immediately rather than covering it up, because:

Early reporting allows clinical monitoring — observing the resident for adverse effects before harm escalates
Pattern analysis of error reports reveals systemic weaknesses that process changes can fix
Complete adverse-event documentation is a requirement under HSS standards and protects the facility during inspections

Caleo’s planned eMAR feature is designed to automate administration time-stamps, send alerts when a dose window is approaching, and flag when a dose has not been recorded — removing the reliance on manual memory. Learn more at Caleo’s eMAR feature page.

A care home with a rigorous medication safety system protects its residents, satisfies regulatory inspectors, and builds the trust of families. If you would like to explore how Caleo can help, get in touch with the team here.