Correct Answer: C

Rationale: In a patient with hyponatremia, hyperactive bowel sounds are expected due to increased gastrointestinal motility. Dry skin (Choice A) is not a typical sign of hyponatremia. Decreased urinary output (Choice B) is more commonly associated with conditions like dehydration or renal issues, not specifically hyponatremia. Increased specific gravity of the urine (Choice D) is a sign of concentrated urine, which is not a characteristic finding in hyponatremia.

Correct Answer: C

Rationale: Bradycardia is a common symptom of hypothyroidism because the condition leads to a decreased metabolic rate. Weight loss (Choice A) is more commonly associated with hyperthyroidism, where the metabolic rate is increased. Heat intolerance (Choice B) is also more indicative of hyperthyroidism due to increased sensitivity to heat. Diarrhea (Choice D) is not a typical symptom of hypothyroidism; rather, constipation is more common due to the slow-down of the digestive system.

Correct Answer: C

Rationale: The correct answer is to monitor blood glucose before meals and at bedtime. This timing allows the client to assess fasting levels and make informed decisions about mealtime insulin or medication doses. Monitoring only when feeling unwell (choice A) is not sufficient for proper glucose management as it may miss important trends. Monitoring only before meals (choice B) is helpful but does not provide a complete picture of the client's glucose control throughout the day. Monitoring only after meals (choice D) is less beneficial than monitoring before meals as it does not capture fasting levels. Therefore, monitoring before meals and at bedtime (choice C) is the most comprehensive approach to maintain good glucose control and prevent complications.

Correct Answer: B

Rationale: Myxedema coma is a severe, life-threatening complication that can occur in individuals with untreated or inadequately treated hypothyroidism. It is characterized by extreme hypothyroidism leading to decreased mental status, hypothermia, bradycardia, and respiratory depression. Thyroid storm (Choice A) is a severe complication of hyperthyroidism, not hypothyroidism. Cushing's syndrome (Choice C) results from prolonged exposure to high levels of cortisol, not related to hypothyroidism. Diabetic ketoacidosis (Choice D) is a complication of uncontrolled diabetes, not directly associated with hypothyroidism.

Correct Answer: C

Rationale: The correct answer is C. Regular insulin typically has an onset of action within 30 minutes and peaks 2-4 hours after administration. Given that the insulin was administered at 2 p.m., the onset of action can be expected around 2:30 p.m., and the peak effect would occur between 4-6 p.m. Choice A is incorrect as the onset and peak are too close together for regular insulin. Choice B is incorrect because the onset time is too soon after administration. Choice D is incorrect as the onset time is too delayed for regular insulin.