A nurse is caring for a 2-year-old child who has Clostridium difficile.

Which of the following actions should the nurse take?

Splinting the incision with a pillow when changing positions can provide support and help minimize discomfort and pain in clients who have undergone a cesarean birth. It can help reduce strain on the incision site and provide a sense of stability and comfort.

"You can apply counterpressure to your back with each position change" may be helpful for managing back pain, but it does not specifically address the client's request for nonpharmacological interventions to manage pain when changing positions after a cesarean birth.

"You should change positions as little as possible" is not an appropriate response as it does not address the client's need to manage pain when changing positions. Encouraging movement and position changes, along with appropriate support, can aid in recovery and prevent complications such as blood clots and respiratory issues.

"You should use patterned-paced breathing when changing positions" is not specifically related to managing pain when changing positions after a cesarean birth. While breathing techniques can be useful for pain management during labor and certain procedures, it may not be the most effective strategy for managing pain when changing positions post-cesarean.

Hyperkalemia refers to an elevated level of potassium in the blood. It can have various manifestations, and one of the critical effects of hyperkalemia is its impact on cardiac function. High levels of potassium can disrupt the normal electrical conduction in the heart, leading to arrhythmias or irregular heart rate. These arrhythmias can range from mild palpitations to more severe and life-threatening conditions like ventricular fibrillation.

Dry mucous membranes are more commonly associated with dehydration or reduced fluid intake. Hyperkalemia does not directly cause dry mucous membranes.

Trousseau's sign is a clinical manifestation of hypocalcemia, not hyperkalemia. It is characterized by carpal spasm induced by inflating a blood pressure cuff above the client's systolic blood pressure for a few minutes.

Hyperactive reflexes are commonly seen in conditions such as hyperthyroidism or certain neurologic disorders. They are not directly related to hyperkalemia.