Medication Errors in Long-Term Care Facilities

September 29, 2026

Medication errors can have serious consequences for nursing home residents, particularly those managing multiple health conditions and medications. Research has found that medication errors are a recurring concern in long-term care, although reported rates vary considerably depending on how errors are defined and measured.


Errors can occur during prescribing, dispensing, monitoring, or administration. Understanding how they happen can help families recognize when an isolated mistake may warrant closer examination. When an error causes harm, a Greenville nursing home abuse and neglect lawyer can also evaluate whether the facility's medication practices or other failures contributed to the injury.

What Research Shows About Medication Errors in Long-Term Care


Studies have reported widely varying medication-error rates in nursing homes and other long-term care settings. For example, one prospective study of 256 residents in 55 UK care homes found that 69.5% experienced at least one prescribing, monitoring, dispensing, or administration error. Residents in that study took an average of eight medications.


Other research reinforces an important point: a medication error does not necessarily result in an injury. A North Carolina study of more than 15,000 reported nursing home medication errors found documented harm in 1.2% of repeated errors and 0.6% of nonrepeated errors. However, repeated errors were associated with greater odds of harm.


For a particular resident, the consequences depend on factors such as the medication involved, the nature of the error, the resident's health, and how quickly the problem is recognized and addressed.


Common Types of Medication Errors in Nursing Homes


Medication errors can occur at several points between prescribing a drug and administering it to a resident. Common errors include:


  • Giving the wrong dose of the correct medication
  • Giving medication intended for another resident
  • Missing or omitting a scheduled dose
  • Administering medication at the wrong time
  • Failing to identify a potentially harmful drug interaction
  • Failing to properly monitor a resident's response to medication


Timing errors can be especially important for medications that require consistent administration or careful monitoring. In one study using electronic medication records in UK care homes, attempts to administer medication at the wrong time accounted for 45% of recorded potential administration errors.


The effect of any medication error depends on the drug, dosage, timing, and resident's medical condition. An error involving insulin, anticoagulants, or other medications requiring careful management may present different risks than a delayed dose of a less time-sensitive medication.


Why Medication Errors Happen


Medication errors in long-term care can result from problems at different stages of medication management. Contributing factors may include staffing pressures, communication failures, incomplete medication records, inadequate training, prescribing problems, and poor coordination among healthcare professionals.


Research involving care home staff, physicians, and pharmacists has also identified problems outside medication administration itself. These include incomplete information about residents, difficulty communicating with prescribers, and unclear responsibilities among the professionals involved in medication management.


For residents taking several medications, coordination becomes especially important. A prescribing error, undocumented medication change, or missed communication can affect later decisions by nurses, pharmacists, and other providers.


Federal Medication Error Standards for Nursing Homes


Federal rules set medication safety standards for nursing homes that participate in Medicare or Medicaid. Under 42 C.F.R. § 483.45, facilities must keep their medication error rate below 5%. Residents must also be protected from significant medication errors.


The 5% rule does not mean a nursing home can make medication errors involving 5% of its residents. During an inspection, surveyors observe staff administering medications and calculate the error rate from those observations.


A serious medication error can also create a problem even when the facility's overall error rate is below 5%. For a family investigating what happened to a loved one, prior medication-related inspection findings may provide useful information about the facility's medication practices.


What Electronic Medication Records Can Show


Many long-term care facilities use electronic medication records or barcode systems to track medications. These systems can record when a medication was given, which resident received it, and whether staff received an alert before administration.


These records can be useful when questions arise about a medication error. They may show whether a dose was missed, given late, or administered to the wrong resident. They may also show whether staff received or responded to certain system warnings.


Electronic records do not prevent every medication error. However, they can provide important information when families are trying to understand what happened and when.


How Medication Errors Can Harm Nursing Home Residents


The effects of a medication error can range from no noticeable harm to a medical emergency. The risk depends on the medication, the type of error, the resident's health, and how quickly the problem is discovered.


For example, too much of a blood thinner may increase the risk of bleeding. An insulin error can cause dangerously high or low blood sugar. Other medication mistakes may contribute to falls, confusion, excessive sedation, seizures, or heart problems.


Residents who take several medications may face additional risks. Each new prescription can create another opportunity for drug interactions, dosing problems, or side effects. Medication reconciliation—reviewing a resident's complete medication list—helps healthcare providers identify these potential problems when medications are added or changed.


For families, the important question is not simply whether an error occurred. It is also what medication was involved, how the mistake affected the resident, and whether appropriate steps were taken once the error was discovered.


When Medication Errors May Point to a Larger Problem


A medication error does not always mean a nursing home failed to provide appropriate care. Mistakes can happen even when proper procedures are in place. However, repeated errors or problems with communication, staffing, or medication records may raise broader concerns about a facility's practices.


Families may first notice something is wrong when a resident becomes unusually confused, sleepy, weak, or ill. A sudden fall or unexpected medical emergency can also raise questions. These symptoms can have many causes, but an unexplained change may warrant a closer look at the resident's medications.


Medication administration records, medical records, and facility inspection reports can help clarify what happened. In some cases, these records may show whether the problem was an isolated mistake or part of a recurring medication-management issue.


If you are concerned about a loved one's medication management, the nursing home abuse and neglect team at Mooneyham Berry can review what happened and help you understand your options.

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