A nurse is caring for a male client who reports nausea and vomiting and is receiving IV fluid therapy. His blood urea nitrogen (BUN) is 32 mg/dL, creatinine 1.1 mg/dL, and hematocrit 50%. Which of the following nursing interventions is appropriate?

The correct answer is: C. Continue the rate at 125 mL/hr.
Choice A: Slow the rate to 50 mL/hr
Slowing the IV fluid rate to 50 mL/hr is not appropriate for a patient with a head injury. Adequate fluid management is crucial to maintain cerebral perfusion pressure and prevent secondary brain injury. Reducing the rate to 50 mL/hr could lead to hypovolemia, which might decrease cerebral perfusion and worsen the patient’s condition.
Choice B: Slow the rate to 20 mL/hr
Slowing the IV fluid rate to 20 mL/hr is even less appropriate. Such a low rate would likely result in significant hypovolemia, severely compromising cerebral perfusion pressure. This could exacerbate the patient’s head injury by reducing the blood flow to the brain, leading to further damage.
Choice C: Continue the rate at 125 mL/hr
Continuing the rate at 125 mL/hr is appropriate. This rate helps maintain euvolemia, which is essential for ensuring adequate cerebral perfusion pressure in patients with head injuries. Maintaining a stable fluid rate helps prevent both hypovolemia and hypervolemia, both of which can negatively impact intracranial pressure and cerebral perfusion.
Choice D: Increase the rate to 250 mL/hr
Increasing the IV fluid rate to 250 mL/hr is not recommended. Overhydration can lead to increased intracranial pressure, which can be detrimental to a patient with a head injury. Excessive fluid administration can cause cerebral edema, worsening the patient’s condition.

Choice A: Cold and numb sensation distal to the fistula site is a possible indication of venous insufficiency. Venous insufficiency is a condition in which the veins have difficulty returning blood from the limbs to the heart, resulting in blood pooling and reduced perfusion. A new arteriovenous fistula can cause increased blood flow through the artery and decreased blood flow through the vein, leading to venous insufficiency. This can manifest as coldness, numbness, tingling, or cyanosis in the fingers or hand below the fistula site.

Choice B: A raised red rash around the fistula site is not a possible indication of venous insufficiency. A raised red rash around the fistula site can indicate an allergic reaction, an infection, or an inflammation of the skin or subcutaneous tissue. The nurse should assess the rash for size, shape, color, texture, temperature, and drainage, and report any signs of infection or inflammation, such as fever, pus, or swelling.

Choice C: Pain in the right arm proximal to the fistula site is not a possible indication of venous insufficiency. Pain in the right arm proximal to the fistula site can indicate arterial insufficiency, which is a condition in which the arteries have difficulty delivering oxygen-rich blood to the tissues, resulting in ischemia and necrosis. Arterial insufficiency can be caused by atherosclerosis, thrombosis, embolism, or vasospasm. The nurse should assess the pain for location, intensity, duration, frequency, and quality, and report any signs of ischemia or necrosis, such as pallor, coolness, weak pulses, or ulceration.

Choice D: Foul-smelling drainage from the fistula site is not a possible indication of venous insufficiency. Foul-smelling drainage from the fistula site can indicate an infection of the fistula or surrounding tissue. The nurse should assess the drainage for color, odor, amount, and consistency, and report any signs of infection or sepsis, such as fever, chills, malaise, or hypotension.