A community health nurse is evaluating the home environment for safety. Which of the following findings would indicate to the nurse that the client has a proper understanding of safety in the home?

Changing smoke alarm batteries annually (or using 10-year lithium batteries) ensures the alarm is functional during a fire emergency — this is appropriate home safety. A single light fixture along the sidewalk provides inadequate lighting and is a fall risk. Area rugs at the front door are slip and trip hazards, especially for older adults. Water heaters should be set at 49° C (120° F) or lower to prevent scalding — 54° C is dangerously hot.