Smoke detectors are designed to sense smoke in the air and alert people to a potential fire, providing early warning so occupants can evacuate and responders can act quickly. They are not devices for earthquakes, which are detected by different systems such as seismic sensors. So the statement that smoke detectors are devices for earthquakes is not true. The other descriptions fit: they are devices for detecting smoke, they assist with detecting fires, and they alert when there is smoke (which can indicate fire). In everyday use, keep detectors installed in key areas, test them monthly, and replace batteries or units as recommended to ensure they function when needed.

The key idea is to distinguish substances the body needs from the body’s own building blocks. The six basic nutrients are water, carbohydrates, proteins, fats, vitamins, and minerals. Cells are the fundamental units of body tissue, not a nutrient you ingest. They’re built from those nutrients but aren’t themselves something you consume for nutrition, so they’re not part of the six basic nutrients. In practice, this helps when talking about diet and hydration: water, carbs, protein, fats, vitamins, and minerals are what you compare to a resident’s intake, while cells are what those nutrients help to form and maintain. The other options—water, protein, and fats—are indeed nutrients.

Verbal abuse means spoken or written words, pictures, or gestures that threaten, embarrass, or insult a person. This matches the description because the harm comes through communication or symbolic actions rather than physical contact or deprivation. Sexual abuse involves sexual acts or exploitation; neglect is failing to meet basic needs; false imprisonment means restricting a person’s freedom. Recognizing verbal abuse is important in home health care because it violates a person’s dignity and safety, and it should be addressed and reported to protect the client.

Preventing annoyances and sleep disturbances comes from shaping the home environment and daily routines. The CHHA is in the best position to make a difference because they work directly with the client at home, can observe how sleep is affected by noise and interruptions, and can coordinate practical changes with family and other caregivers. They can cluster care so nighttime awakenings are minimized, advocate for quiet hours and reduced bedside noise, help manage alarms or doorbells during sleep, and ensure the sleeping area stays cool, comfortable, and softly lit. By guiding these adjustments and teaching soothing routines, the CHHA directly supports better sleep. While loud alarms, door bells, and hot days can contribute to disturbances, these issues are addressed through the CHHA’s actions to create a calmer, more sleep-friendly environment.