Correct Answer: B

Rationale: Obtaining a detailed health and dietary history is crucial when assessing constipation in elders. This helps the nurse identify potential causes such as inadequate fluid intake, low fiber diet, lack of physical activity, or medications that could be contributing to constipation. A complete blood count (Choice A) is not the priority in the initial assessment of constipation. Referring to a provider for a physical examination (Choice C) would be done after gathering more information from the health history. Measuring height and weight (Choice D) is not directly relevant to assessing constipation and identifying its causes.

Correct Answer: C

Rationale: The correct answer is C. Oxygen saturation levels below 95% indicate hypoxia and require immediate intervention. A heart rate of 88 beats per minute, a blood pressure of 100/60, and a respiratory rate of 16 are within normal ranges and do not require immediate intervention. Oxygen saturation is a critical parameter reflecting the client's oxygenation status.

Correct Answer: C

Rationale: A total calcium level of 5.0 mg/dL is critically low and indicates possible hypocalcemia, a common complication after thyroid surgery. This condition can lead to tetany and requires immediate intervention. Blood glucose within normal range, sodium, and potassium levels are not indicative of an immediate postoperative complication like hypocalcemia in this case.

Correct Answer: B

Rationale: The correct answer is B: Hemoglobin. Erythropoietin stimulates the production of red blood cells, leading to an increase in hemoglobin levels. Monitoring hemoglobin is crucial to assess the effectiveness of the treatment. Choices A, C, and D are incorrect. Serum potassium levels are often monitored in chronic kidney disease, but it is not the primary parameter to evaluate the effectiveness of erythropoietin therapy. White blood cell count and platelet count are not directly influenced by erythropoietin injections for chronic kidney disease.

Correct Answer: B

Rationale: Engaging in regular physical activity is a crucial lifestyle modification for managing hypertension. Regular exercise helps improve cardiovascular health, lower blood pressure, and contribute to overall well-being. Choices A, C, and D are incorrect. Increasing sodium intake is not recommended for hypertension as it can worsen fluid retention and elevate blood pressure. Increasing caffeine intake is also not advised as it may lead to increased heart rate and blood pressure. Reducing potassium intake is not beneficial as potassium is essential for maintaining healthy blood pressure levels.