Correct Answer: D

Rationale: Age-related changes in sleep include reduced sleep efficiency, increased incidence of nocturnal awakening, increased incidence of early-morning awakening, and increased daytime sleepiness. Since the reported data are normal age-related changes, the appropriate action for the nurse would be to document the findings in the medical record. Reporting the findings to the registered nurse is unnecessary as these changes are expected with aging and do not indicate a need for immediate intervention. Prescribing sedatives should be avoided as a first-line approach due to potential side effects and risks, especially in older adults. Encouraging the consumption of stimulants like caffeinated beverages during the daytime may further disrupt sleep patterns, which is counterproductive in addressing the client's reported sleep issues.

Correct Answer: B

Rationale: Signs of physical readiness for toilet training include the child's ability to remove his or her own clothing. This ability indicates the child has developed the necessary fine motor skills to manage clothing during toilet training. The other choices are incorrect because temper tantrums, walking for a specific period, and using utensils are not indicators of physical readiness for toilet training.

Correct Answer: C

Rationale: Medication bound to protein leads to less availability to produce desired medicinal effects because only unbound drugs can interact with active receptor sites. If a drug is bound to protein, it cannot bind with a receptor site, reducing its effectiveness. Choice A is incorrect because binding to protein reduces drug availability. Choice B is incorrect because distribution to receptor sites is ineffective if the drug is bound to protein. Choice D is incorrect because metabolism does not occur until the drug is removed from the protein molecule by the liver, allowing the protein to return to circulation.

Correct Answer: C

Rationale: In later adulthood, age-related findings include trophic changes associated with arterial insufficiency, such as thin, shiny skin; thin, ridged toenails; and loss of hair on the lower legs. These changes occur normally with aging. Thick skin on the lower legs would not be an expected age-related finding as it typically indicates chronic venous insufficiency. A bounding dorsalis pedis pulse is not typical in later adulthood and may indicate arterial insufficiency, which is not an age-related finding.

Correct Answer: C

Rationale: The correct advantage of using CVADs for chemotherapeutic agent administration is that chemotherapeutic agents can be caustic to smaller veins. Many chemotherapeutic drugs are vesicants, which can cause tissue damage even in low concentrations. Using a CVAD to administer these agents into a large vein is optimal as it reduces the risk of damage. Choice A is incorrect as CVADs are actually more expensive than a peripheral IV, making it a disadvantage. Choice B is incorrect because the frequency of administration depends on the specific drug being administered, not on the access device, so it does not represent a universal advantage. Choice D is incorrect because IV chemotherapeutic agents are typically not self-administered at home; they are usually given in a hospital, outpatient, or clinic setting, making it an invalid advantage of using CVADs.