To evaluate the effectiveness of mannitol, the nurse should monitor:

Choice A reason:

Monitoring sodium levels is important when administering mannitol, but it is not the primary indicator of the drug's effectiveness. Mannitol is an osmotic diuretic used to reduce intracranial pressure, and its effectiveness is better assessed by other means.

Choice B reason:

Fluid intake is important to monitor to ensure proper hydration status, but it does not directly indicate the effectiveness of mannitol. The primary focus should be on the patient's output to assess the diuretic effect.

Choice C reason:

Heart rate monitoring is essential for overall patient care but does not directly indicate the effectiveness of mannitol. Changes in heart rate can occur due to various factors and are not specific to mannitol's action.

Choice D reason:

Urine output is the most direct measure of mannitol's effectiveness. As an osmotic diuretic, mannitol promotes diuresis, and increased urine output indicates that the drug is effectively reducing intracranial pressure.

Choice A reason:

Soaking the pin sites with alcohol pads is not recommended as it can dry out the skin and increase the risk of infection. Pin site care typically involves using saline or other recommended solutions to clean the area gently.

Choice B reason:

Removing the vest when bathing the patient is not recommended. The vest provides stability and support for the spinal fracture, and removing it can compromise the patient's safety. Alternative methods should be used to maintain hygiene without removing the vest.

Choice C reason:

Assessing the chest and back for skin breakdown is crucial in patients with a halo device to prevent pressure ulcers and other skin issues. Regular assessment helps identify any potential problems early.

Choice D reason:

Assessing pin sites frequently for signs of infection is essential to prevent complications. Infection at the pin sites can lead to serious issues, and frequent monitoring ensures any signs of infection are caught and treated promptly.

Choice E reason:

Taping a halo wrench to the vest is important for emergencies. The wrench is necessary to quickly remove the halo device if needed in an emergency situation, such as if the patient requires resuscitation.