A nurse is teaching a class about Piaget's stages of cognitive development.
The nurse should instruct that object permanence develops during which of the following stages?

Choice A rationale:

Secondary prevention involves early detection and intervention to prevent the progression of a disease. In the case of breast cancer, a mammogram is a secondary prevention measure because it aims to detect cancer at an early stage, especially in individuals with a family history of the disease. Early detection can lead to timely treatment and improved outcomes.

Choice B rationale:

Echocardiograms are typically used to assess the function of the heart and diagnose existing heart conditions. While it is a valuable diagnostic tool, it is not an example of secondary prevention, which is focused on early detection and prevention of disease.

Choice C rationale:

Influenza vaccination is an example of primary prevention, as it aims to prevent the initial occurrence of the disease by providing immunity against the influenza virus. It is not considered a form of secondary prevention.

Choice D rationale:

Not scheduling a series of tests for an asymptomatic client does not fit the definition of secondary prevention. Secondary prevention involves screening and early detection in individuals at risk or with early signs of a disease to prevent its progression. An asymptomatic client without known risk factors may not require such testing as a preventive measure.

Choice A rationale:

Decreased thickness of tympanic membranes is not a typical physiological change in older adults. Tympanic membranes tend to become thinner and less flexible with age, leading to increased susceptibility to damage, not decreased thickness.

Choice B rationale:

Decreased tinnitus is not a physiological change related to aging. Tinnitus can occur in individuals of all ages and is often associated with various factors such as exposure to loud noises, ear infections, or underlying medical conditions.

Choice C rationale:

Decreased ear wax is not a typical physiological change in older adults. In fact, older adults may experience increased production of earwax, which can lead to hearing problems if not managed appropriately.

Choice D rationale:

Decreased ability to hear high-frequency sounds is a common physiological change in older adult clients. This change, known as presbycusis, is characterized by a reduced ability to hear high-pitched sounds due to changes in the inner ear, including damage to hair cells and changes in the auditory nerves. Presbycusis is a well-documented and expected age-related change in hearing.