Which issue was identified by the IOM report as the most significant safety issue confronting clinicians in health IT?

• A. Poor Usability
• B. Data Interoperability
• C. System Downtime
• D. Inadequate Training

Answer: (A)

The issue being tested is how the usability of health IT systems directly affects clinician safety. The IOM report identifies poor usability as the most significant safety risk because interface design, workflow alignment, and cognitive load directly influence whether clinicians can safely and efficiently complete tasks. When a system is hard to use—confusing layouts, non-intuitive navigation, poorly designed order sets, or misleading alerts—clinicians are more prone to errors, take extra time, or skip steps, all of which can endanger patients. Usability problems can undermine data accuracy, disrupt workflow, and increase the chance of wrong selections or misinterpretations, which then propagate into safety events.

While data interoperability, system downtime, and inadequate training are important concerns for health IT safety, the IOM emphasis was that usability underpins safe use across many contexts. Even with good data exchange and training, a poorly designed interface creates risks that are hard to mitigate. Therefore, poor usability is identified as the most significant safety issue confronting clinicians in health IT.