Characteristics of a brief resolved unexplained event (BRUE) do NOT include:

A brief resolved unexplained event (BRUE) refers to a sudden and short episode in infants that typically lasts less than a minute, during which there may be various concerning signs. The defining characteristics of a BRUE include cyanosis, changes in muscle tone, and alterations in the level of consciousness, which are often observed during the event.

The presence of cyanosis signifies a temporary lack of oxygen or an issue with respiratory function, while changes in muscle tone may reflect neurological or muscular concerns. An altered level of consciousness can indicate varying degrees of awareness or responsiveness during the event, which aligns with the clinical picture of a BRUE.

However, a complete loss of consciousness does not align with the characteristics of a BRUE. In a BRUE, the infant typically remains responsive, even if there are brief interruptions in normal respiratory or muscle functions. A complete loss of consciousness suggests a different clinical condition, such as a seizure or another serious issue requiring immediate medical attention, rather than a brief and self-resolving episode.