Final answer:
Normal age-related changes for an older adult client include decreased renal function, lowered metabolism, diminished sensory perceptions, and reduced cardiac output.
Step-by-step explanation:
When caring for an older adult client at a home health care facility, a nurse should consider decreased renal function as a normal age-related change. This change is part of a broader decline in organ function. Other normal age-related changes include a decrease in metabolism, weakening sensory perceptions, and a reduced cardiac output due to a decrease in the efficiency of the body's homeostats. These changes can lead to a homeostatic imbalance, making elderly people more prone to diseases like heat stroke, infectious diseases, and certain cancers.