Nightmares and irritability are common signs of posttraumatic stress in a young child. Nightmares reflect the child re-experiencing the frightening event, which can surface in sleep as distressing dreams about the trauma. Irritability or mood changes reflect difficulty regulating emotions and heightened arousal after exposure to trauma. In a 6-year-old, PTSD often shows up as disruptions in sleep, acting out in play or behavior, and other changes in functioning, rather than improved performance or no change at all. While separation anxiety can occur in traumatized children, it does not specifically capture the typical pattern of re-experiencing and hyperarousal demonstrated by nightmares and irritability.

Dementia is a chronic, progressive decline in cognitive abilities, including memory and thinking, that interferes with daily life. It’s a broad syndrome with many possible underlying causes, and while Alzheimer’s disease is the most common one, there are several other conditions that can lead to dementia. The key feature is that the problems persist and worsen over time, rather than coming and going. That’s why the statement describing dementia as a wide range of symptoms involving a decline in memory and thinking that disrupts daily life, with Alzheimer’s as a primary cause, is the most accurate. It captures both the common core—memory and thinking difficulties affecting daily functioning—and the reality that multiple diseases can produce this pattern. It’s not about a temporary issue that resolves with rest, it isn’t just a collection of unrelated symptoms, and it isn’t identical to delirium or typically reversible; delirium is an acute, fluctuating condition usually due to an underlying medical problem, whereas dementia is chronic and largely progressive.

Intoxicated means that a person’s mental or physical functioning is presently substantially impaired as a result of using alcohol or other substances. This impairment is about the current state—the person is under the influence right now, which can affect judgment, coordination, perception, and behavior. The other ideas don’t fit: feeling tired after not sleeping describes fatigue, not intoxication; being exposed to caffeine is exposure, not impairment; and no impairment after using substances contradicts the idea of intoxication. Recognizing this definition helps you assess safety and ability to participate in decisions or actions when someone may be under the influence.

Clear, direct, and respectful guidance that focuses on restoring normal activity is the best approach in managing a waiting room. This option does exactly that: it addresses the individual by name, uses inclusive language with “you and I,” and states a concrete action—leaving the waiting room—to help everyone get back to work and reduce disruption. It communicates a shared goal and provides a specific next step, which helps de-escalate a tense moment without threatening consequences. The other choices either introduce threat, are too vague, or delay addressing the issue, which can heighten anxiety or prolong the disruption.