Correct Answer: C

Rationale: The correct answer is C. Folic acid helps prevent neural tube defects, and dietary sources like cereals and citrus fruits are good options to increase folic acid intake. Choice A is incorrect because folic acid is primarily recommended to prevent neural tube defects, not to prevent infections. Choice B is incorrect because the recommended daily intake of folic acid for pregnant women is at least 400 micrograms, not 300. Choice D is incorrect because folic acid is not typically associated with improving energy levels.

Correct Answer: C

Rationale: The correct action for the nurse to take when caring for a client with a chest tube connected to a water-seal drainage system is to add sterile water to the water-seal chamber. This is necessary to maintain the correct water level for proper chest tube function. Clamping the chest tube during ambulation (Choice A) is incorrect as it can lead to complications by obstructing drainage. Keeping the collection chamber below the level of the chest (Choice B) is incorrect because it should be kept below the chest to facilitate drainage. Emptying the collection chamber every 12 hours (Choice D) is incorrect as it should be emptied whenever it reaches the fill line or as per facility policy, not on a fixed time schedule.

Correct Answer: A

Rationale: Calcium gluconate is the correct answer because it is administered to treat hypocalcemia, a common complication post-thyroidectomy. After a thyroidectomy, there is a risk of damaging the parathyroid glands, which can lead to a decrease in calcium levels. Administering calcium gluconate helps to raise calcium levels. Sodium bicarbonate (Choice B) is not typically indicated for immediate postoperative care following a subtotal thyroidectomy. Potassium chloride (Choice C) is not directly related to the common complications of this specific surgery. Sodium phosphate (Choice D) is not typically used to address immediate postoperative issues post-thyroidectomy.

Correct Answer: A

Rationale: When a client in active labor has ruptured membranes, the priority action for the nurse is to apply a fetal heart rate monitor. This is crucial for continuous monitoring of the baby's heart rate and ensuring fetal well-being. Initiating fundal massage may be indicated for uterine atony after delivery, not for ruptured membranes during labor. Administering oxytocin IV could be appropriate in some cases to augment labor, but it is not the immediate priority after ruptured membranes. Inserting an indwelling urinary catheter is not necessary solely based on ruptured membranes; it may be indicated for specific situations like epidural anesthesia where the client cannot void.

Correct Answer: D

Rationale: Facial weakness is a common finding in clients with Guillain-Barr© syndrome due to muscle weakness. While increased urine output is not typically associated with Guillain-Barr© syndrome, hyperactive reflexes are more indicative of conditions like hyperthyroidism or spinal cord injury. Hypoactive bowel sounds are not a classic finding in Guillain-Barr© syndrome, making it an incorrect choice.