Correct Answer: C

Rationale: The correct answer is C: Increased energy levels. When a client with hypothyroidism is receiving levothyroxine, increased energy levels indicate that thyroid hormone levels are being normalized, which is a positive response to treatment. This improvement reflects the effectiveness of the medication in addressing the underlying hypothyroidism. Choices A, B, and D are incorrect. Decreased heart rate and decreased appetite may be symptoms of hypothyroidism and would not necessarily indicate the effectiveness of levothyroxine. Increased weight could also be a symptom of hypothyroidism and does not directly reflect the medication's effectiveness.

Correct Answer: C

Rationale: The correct solution for nasogastric tube irrigation in this scenario is sodium chloride. The client's low sodium level of 132 mEq/L indicates the need to avoid further imbalance, making sodium chloride the most appropriate choice. Using tap water, which lacks electrolytes, or sterile water could potentially exacerbate the electrolyte imbalance. Normal saline, while similar to sodium chloride, may not be the best choice as it contains a higher concentration of sodium, which could further elevate the client's already borderline sodium level.

Correct Answer: A

Rationale: The correct answer is A: 'Related to bone demineralization resulting in pathologic fractures.' In chronic hyperparathyroidism, bone demineralization occurs due to the excessive release of parathyroid hormone, leading to increased calcium resorption from bones. This process weakens the bones, making the client prone to pathologic fractures. Choices B, C, and D are incorrect because they do not directly relate to the increased risk of injury associated with chronic hyperparathyroidism. Exhaustion, edema, dry skin, and tetany are not the primary risks for injury in this client population.

Correct Answer: A

Rationale: Chvostek's and Trousseau's signs are clinical manifestations that suggest hypocalcemia, a common complication following thyroidectomy. Chvostek's sign is elicited by tapping the facial nerve, resulting in facial muscle contraction, while Trousseau's sign is provoked by inflating a blood pressure cuff, leading to carpal spasm. Both signs are indicative of low calcium levels in the blood. Therefore, options B, C, and D are incorrect as they do not correlate with the signs specifically associated with hypocalcemia.

Correct Answer: D

Rationale: For clients with Cushing's syndrome, they are at risk of developing hypokalemia due to increased excretion of potassium. Therefore, it is essential to advise them to increase their potassium intake. Choices A, B, and C are incorrect because: A) Increasing sodium intake can worsen fluid retention and hypertension common in Cushing's syndrome. B) Limiting protein intake is not necessary unless there are specific kidney issues that require protein restriction. C) Limiting calcium intake is not typically recommended unless there are underlying conditions such as hypercalcemia.