Correct Answer: D

Rationale: In a client with diabetes insipidus, excessive thirst (polydipsia) and excessive urination (polyuria) are expected symptoms due to the inability to concentrate urine, leading to dilute urine production. Nocturia, waking up at night to urinate, is also common. However, hypertension is not a typical symptom of diabetes insipidus. The correct answer is D because hypertension may indicate a complication such as dehydration or electrolyte imbalances, which would require further assessment in a client with diabetes insipidus.

Correct Answer: A

Rationale: The correct answer is A, Sulfisoxazole (Gantrisin). Sulfisoxazole is known to potentiate hypoglycemia, making it unsafe for clients with a history of hypoglycemia. Choice B, Mexiletine, is a medication used to treat certain heart rhythm problems and is not associated with hypoglycemia. Choice C, Prednisone, is a corticosteroid and does not potentiate hypoglycemia. Choice D, Lithium carbonate, is commonly used to treat bipolar disorder and does not typically potentiate hypoglycemia. Therefore, the drug that Nurse Ruby should avoid in this case is Sulfisoxazole (Gantrisin) to prevent worsening the client's hypoglycemic condition.

Correct Answer: C

Rationale: The correct symptom to mention when educating a client with diabetes mellitus (DM) on hypoglycemia is sweating. Sweating is a common symptom of hypoglycemia as it occurs due to the activation of the sympathetic nervous system in response to low blood sugar levels. Increased thirst (Choice A) and frequent urination (Choice B) are more indicative of hyperglycemia (high blood sugar) rather than hypoglycemia. Weight loss (Choice D) is not a typical symptom associated with hypoglycemia.

Correct Answer: B

Rationale: Hypoparathyroidism is characterized by decreased levels of parathyroid hormone, leading to reduced calcium levels in the blood, which results in hypocalcemia. Therefore, the correct answer is B. Choices A, C, and D are incorrect because hypoparathyroidism does not typically lead to hypercalcemia, hyperkalemia, or hypernatremia. Hypercalcemia is more commonly associated with hyperparathyroidism, where there is excess secretion of parathyroid hormone.

Correct Answer: B

Rationale: Puffiness of the face and hands is a classic symptom of hypothyroidism. This occurs due to fluid retention and is commonly observed in individuals with an underactive thyroid gland. Increased appetite and weight loss (Choice A) are more indicative of hyperthyroidism, where there is an overproduction of thyroid hormones leading to increased metabolism. Nervousness and tremors (Choice C) are associated with hyperthyroidism, not hypothyroidism. Thyroid gland swelling (Choice D) typically indicates goiter, which can be present in both hyperthyroidism and hypothyroidism but is not a specific symptom that clients with hypothyroidism commonly report.