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Why 1 in 5 Hospital Medication Doses Go Wrong, and What You Can Do About It

nurse preparing medication

Medication Errors: The Hidden Epidemic in Our Hospitals 

Every day, nurses and physicians make thousands of life-critical decisions. But despite their expertise, 1 in 5 hospital medication doses are administered with some form of error (Barker et al., 2002). These errors aren’t just statistical anomalies, they’re one of the leading sources of preventable harm in healthcare. 

According to the World Health Organization, unsafe medication practices cause at least one death every day and harm millions of patients globally each year. The financial cost? An estimated $42 billion USD annually worldwide (WHO: Medication Without Harm). 

So why are errors so common, and what can we do about it? 

 

When and Where Medication Errors Happen 

Research consistently shows that intravenous (IV) medication processes are among the most error-prone. Errors can occur at multiple points in the medication workflow: 

Stage  Example Error 
Prescribing  Wrong drug or dose ordered due to misinterpretation 
Transcribing  Manual copying of orders introduces typos or omissions 
Preparation  Incorrect dilution, miscalculation, or compatibility error 
Administration  Wrong route, timing, or patient not properly identified 

In hospitals, especially emergency and pediatric departments, time pressure and fragmented workflows create the perfect storm. 

Why Errors Happen: A Systemic View 

A 2021 systematic review by Kuitunen et al. identified key system-level causes behind intravenous medication errors in hospitals: 

  1. Manual calculation tasks, leaving room for human error-especially under pressure and without double-checking 
  2. Breakdowns in double-check procedures, increasing the risk that mistakes reach the patient 
  3. Confusion between look-alike and sound-alike (LASA) medications, particularly in non-standard workflows 
  4. Limited drug knowledge, including issues around diluents, concentrations, and dosing volumes 
  5. Inadequate safeguards for high-alert medications, without system-level fail-safes to prevent missteps 

In under-resourced or rural emergency settings, these risks are amplified: fragmented information systems, reliance on static tools (like PDFs or binder protocols), and inconsistent workflows all elevate cognitive burden, making context-aware digital tools not a luxury, but a necessity. 

Organizations like the American Society of Health-System Pharmacists (ASHP) are pushing for greater standardization through initiatives like Standardize 4 Safety, which promotes national standards for medication concentrations and preparation practices. 

 

The Cognitive Cost of Manual Workflows 

Cognitive burden isn’t just a clinician wellness issue, it’s a patient safety risk. 

  • 87% of fatal medical errors are linked to cognitive overload among clinicians (AMA, 2023) 
  • Emergency nurses often juggle 4+ tools just to prepare a single IV medication dose (calculator apps, printed protocols, Excel sheets, institutional drug tables) 

This fragmented reality increases the risk of delays, errors, and burnout, and is exactly why the WHO has made medication safety one of its global patient safety priorities (WHO, 2021). 

 

What Can Be Done? 

Improving safety starts with rethinking how clinicians access and apply medication information at the bedside. 

While Electronic Health Records (EHRs) play a foundational role in hospital workflows, research shows that their design can directly affect patient safety, nurse workload, and staff well-being: 

  • Classen etal. (2023) found that hospitals where frontline clinicians rated their EHR as more usable also had higher EHR safety performance, demonstrating a clear link between usability and safe medication practices  
  • Sæthre (2025) reported that poorly executed EHR rollouts left staff feeling emotionally distressed, describing systems as “cumbersome, inefficient, and counterintuitive,” and linking these experiences to concerns around workflow strain and patient safety 
  • Taneja etal. (2025) confirmed this in a Canadian community hospital context: implementations increased clerical burden, introduced information overload, and impaired workflow efficiency, especially impacting nursing teams 

That’s where purpose-built tools like NurEx come in. 

Designed to complement, not replace, EHRs, NurEx is a real-time, patient-specific medication preparation platform for high-risk settings like emergency departments. Validated at the Montreal Children’s Hospital, NurEx has demonstrated: 

  • 94% reduction in nurse-reported cognitive load 
  • 58-88% faster medication preparation 
  • Seamless integration into trauma workflows 

(See full results in our white paper → Safer, Faster, Smarter: NurEx in Pediatric Emergency Medication Workflows)

NurEx streamlines bedside care by consolidating automated calculations, compatibility checks, reminders, and institution-specific protocols into one clean interface. By aligning with international safety standards from WHO and ISMP, it helps transform medication workflows into modern, trusted systems, enhancing safety without adding friction. 

 

The Bottom Line 

Medication errors are not inevitable. They are a symptom of outdated systems and poor information design at the point of care. 

As leading healthcare organizations continue to push for safer, more connected systems, hospitals that modernize their medication workflows will see gains in safety, efficiency, and clinician confidence. 

It’s time to move beyond binders and calculators, and toward real-time, interoperable tools that reduce harm and elevate care. 

 

Sources 

  • Barker KN, Flynn EA, Pepper GA, Bates DW, Mikeal RL. Medication errors observed in 36 healthcare facilities. Arch Intern Med. 2002;162(16):1897 - 1903. 
  • Kuitunen SK, et al. Systemic Causes of In-Hospital IV Medication Errors: A Systematic Review. J Patient Saf. 2021;17(8):e1660 - e1668. 
  • Classen DC, Longhurst CA, Davis T, Milstein JA, Bates DW. Inpatient EHR User Experience and Hospital EHR Safety Performance. JAMA Netw Open. 2023;6(9):e2333152. 
  • Taneja S, Vanderhout S, Heidebrecht CL, Nie JX, Seuren L, Giri R, Kuluski K, Mansfield E, Hayes C, Reid R, Wodchis WP, Tang T. Exploring the impact of an electronic health record implementation on user experiences across clinical programmes in a large Canadian community hospital: a qualitative study. BMJ Open. 2025 Apr 30;15(4):e095771. 
  • Sæthre E, Ose SO, Krokstad S, Gismervik SØ. "Terrible Stuff. We've been had": hospital staff reactions to a new electronic health record and implications for employee well-being - A qualitative study. Int J Med Inform. 2025 Jul 10;204:106039. 
  • ASHP: Standardize 4 Safety Initiative 
  • PSQH: Patient Safety & Quality Healthcare, 2024 

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