Lesson 1: Introduction- Why Pharmacology Matters

Medical errors are a significant concern in healthcare, including therapy practices such as physical, occupational, and speech therapy. Defined as the failure of a planned action to be completed as intended or the use of an incorrect plan to achieve an aim, medical errors can lead to adverse outcomes for patients and undermine trust in healthcare systems (Ahsani-Estahbanati et al., 2022). Understanding the types of medical errors and their implications is essential for improving patient safety and quality of care. Medical errors in therapy practice encompass a broad range of mistakes that can occur during patient assessment, planning, intervention, and documentation. These errors are often classified into several categories:

Diagnostic Errors

Diagnostic errors involve missed, delayed, or incorrect diagnoses, which can lead to inappropriate therapy interventions. For example, misinterpreting a neurological condition as musculoskeletal can result in ineffective or harmful treatment strategies (Tribler et al., 2025).

Medication Errors

Therapists often collaborate with physicians on pharmacological management, and errors such as incorrect dosage, wrong medication, or failure to monitor drug interactions can occur. These errors are particularly dangerous in rehabilitation settings where patients may be on multiple medications (Naseralallah et al., 2023).

Communication Errors

Breakdowns in communication between therapists, physicians, and patients can lead to misunderstandings about treatment goals, contraindications, or precautions. Ineffective communication is a leading cause of errors in occupational therapy practice (Lohman et al., 2008).

Procedural and Technical Errors

Errors in applying therapeutic techniques—such as incorrect exercise prescription or improper use of assistive devices—can result in patient harm. These often stem from inadequate training, fatigue, or lack of preparation (Mu et al., 2006).

Documentation Errors

Incomplete or inaccurate documentation can lead to duplication of services, inappropriate interventions, and billing issues. Proper record-keeping is essential for continuity of care and legal compliance (Ungvarsky, 2023).

Latent and Active Errors

Medical errors can also be understood through James Reason’s Swiss Cheese Model, which distinguishes between active errors and latent errors.

Active Errors occur at the point of contact between the healthcare provider and the patient. In therapy practice, examples include misjudging a patient’s functional capacity during an intervention or incorrectly applying a therapeutic modality. Active errors are often immediately apparent and linked to human factors such as fatigue, distraction, or inadequate knowledge (PSNet, 2024).

Latent Errors are hidden system-level weaknesses that create conditions for active errors to occur. They include organizational issues such as inadequate staffing, poor training programs, unclear protocols, or faulty equipment maintenance. For instance, if a rehabilitation facility lacks standardized procedures for medication reconciliation, therapists may inadvertently contribute to medication errors. These latent conditions often go unnoticed until they align with active failures, resulting in harm (ISMP, 2023).

Implications on Patient Care and Safety

Medical errors have far-reaching consequences that affect patients, providers, and healthcare systems.

Physical Harm and Functional Decline

Incorrect exercise prescriptions or improper use of assistive devices—can exacerbate injuries, delay recovery, or cause new complications. For example, applying excessive resistance during rehabilitation for a post-stroke patient may lead to muscle strain or joint damage, prolonging hospitalization and reducing functional independence (Lohman et al., 2008).

Psychological and Emotional Impact

Patients who experience medical errors often report feelings of anxiety, fear, and loss of trust in healthcare providers. This emotional distress can reduce adherence to treatment plans and negatively affect rehabilitation outcomes. In severe cases, patients may develop post-traumatic stress symptoms related to their healthcare experience (Mazor et al., 2004).

Increased Healthcare Costs

Medical errors contribute significantly to the financial burden on healthcare systems. Costs arise from additional treatments, extended hospital stays, legal claims, and compensation. A systematic review estimated that preventable medical errors cost billions annually, highlighting the economic imperative for error reduction strategies (Ahsani-Estahbanati et al., 2022).

Ethical and Professional Consequences

Errors compromise the ethical principle of nonmaleficence (“do no harm”) and can damage professional credibility. Therapists involved in errors often experience guilt, stress, and burnout, which may lead to decreased job satisfaction and workforce attrition. Creating a culture of safety and transparency is essential to support clinicians and maintain ethical standards (Sorrell, 2017).

Systemic Impact on Quality of Care

Beyond individual harm, medical errors signal systemic weaknesses in healthcare delivery. Frequent errors may indicate inadequate protocols, poor communication channels, or insufficient training. These systemic issues undermine overall quality of care and patient safety, necessitating organizational-level interventions (Gemmete, 2024).