Worked Examples: Colleague Impairment (Fatigue, Substance, Illness)

One of the most challenging scenario types in the UCAT SJT involves a colleague who may be impaired — whether through fatigue, substance use, or illness. These scenarios are difficult because they create a tension between loyalty to a colleague and duty to patients. The SJT consistently rewards candidates who prioritise patient safety while handling the situation with compassion.

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Why Colleague Impairment Matters

An impaired healthcare professional is a patient safety risk. The GMC is clear:

"If you have concerns that a colleague may not be fit to practise... you must take steps to protect patients."

This applies equally to medical students observing impaired colleagues. You have a professional duty to act, even if the colleague is senior to you.

Types of Impairment