Medication Errors in Nursing Homes

Types of Medication Errors in Nursing Home Settings

The five classic medication error categories — wrong patient, wrong drug, wrong dose, wrong route, wrong time — all occur in nursing home settings. Wrong drug errors often result from look-alike or sound-alike medications stored in proximity. Wrong dose errors may result from transcription errors in physician orders, failure to adjust doses for renal or hepatic impairment, or failure to recognize high-risk medications (anticoagulants, insulin, opioids, digoxin). Omission errors — the failure to administer a prescribed medication — are the most common type and may cause clinical deterioration in residents with seizure disorders, cardiac conditions, or diabetes. Drug interaction errors occur when new medications are added without pharmacist review of the existing medication list.

High-Risk Medications and Their Consequences

Anticoagulants (warfarin, heparin, newer oral anticoagulants) are among the most dangerous medications in the nursing home setting. Warfarin dosing requires regular INR monitoring, and errors can cause life-threatening hemorrhage (intracranial, gastrointestinal) or, in the opposite direction, thromboembolic events (stroke, pulmonary embolism). Insulin errors can cause life-threatening hypoglycemia. Opioid overdoses cause respiratory depression and death. Antipsychotic medications given without clinical indication cause falls, fractures, and accelerated cognitive decline. Each of these categories of errors creates actionable negligence claims, particularly when the error was the result of deficient documentation, inadequate nurse training, or the absence of pharmacist oversight.

Proving Medication Error Claims

The medication administration record (MAR) is the central document in a medication error case. It records every dose administered, the time and route, and the nurse who administered it. Discrepancies between physician orders and the MAR, unexplained gaps in administration, documentation of wrong doses administered, and failure to document administration at all are red flags. Pharmacy dispensing records, physician order sheets, and nursing notes corroborate or contradict the MAR. Expert pharmacists and geriatric medicine physicians can testify to the standard of care for the specific medication involved and the causal connection between the error and the resulting injury.