Correct Answer: A

Rationale: The wife is correctly performing the passive range-of-motion exercises by holding the arm above and below the elbow. The nurse should acknowledge this correct technique (A). It is essential to keep the joint uncovered (B) during exercises, while ensuring the rest of the body remains covered for warmth and privacy. Choices (C) and (D) do not provide optimal support to the joint for effective movement.

Correct Answer: A

Rationale: Administering regular insulin IV (A) is the initial intervention for a client with diabetic ketoacidosis (DKA) to rapidly reduce blood glucose levels. This is vital in reversing the ketosis and acidosis seen in DKA. Administering IV fluids (B) helps to correct dehydration and electrolyte imbalances. Administering sodium bicarbonate (C) and furosemide (D) may be necessary depending on the client's condition, but insulin administration takes precedence in the management of DKA.

Correct Answer: B

Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.

Correct Answer: D

Rationale: The nurse should carefully monitor serum sodium levels for a client with an NG tube on suction for an extended period due to potential fluid loss and the risk of developing hyponatremia, an electrolyte imbalance. Hyponatremia can occur as a result of continual suctioning leading to fluid loss, making it crucial to monitor sodium levels to prevent complications associated with low sodium levels. Monitoring white blood cell count, albumin, or calcium is not directly related to the impact of NG tube suction on fluid and electrolyte balance, so these values are not the priority in this scenario.

Correct Answer: B

Rationale: The correct action for the nurse to take in this situation is to remind the unlicensed assistive personnel (UAP) to dry between the client's toes completely. Failing to dry between the toes can lead to skin breakdown due to excessive moisture accumulation. Proper drying is essential to maintain skin integrity and prevent complications in the client's care. Removing the basin of water immediately may disrupt the care process and not address the root cause of the issue. Advising about potential skin damage is not as direct and actionable as reminding to dry between the toes. Adding skin cream to the water may not be appropriate without specific orders and can potentially worsen the situation by increasing moisture.