The nurse is caring for a patient with a head injury after a fall from a ladder. The nurse must evaluate the patient for which signs and symptoms of increased intracranial pressure?

Choice A reason: This is incorrect. The foot remaining in the same position prior to stroking the sole of the foot is a normal response in adults. It indicates that the spinal cord and the brain are intact and functioning properly.

Choice B reason: This is correct. Great toe bending upward, and smaller toes fanning outward is an abnormal response in adults. It indicates a positive Babinski reflex, which is a sign of damage to the cerebral cortex or the pyramidal tract. The cerebral cortex is the outer layer of the brain that controls higher functions such as thinking, reasoning, and movement. The pyramidal tract is a bundle of nerve fibers that connects the cerebral cortex to the spinal cord and controls voluntary movements.

Choice C reason: This is incorrect. Great toe bending downward is also a normal response in adults. It indicates that the spinal cord and the brain are intact and functioning properly.

Choice D reason: This is incorrect. The opposite foot assuming the same position as the foot being stroked is not related to the Babinski reflex. It is a phenomenon called mirror movement, which may occur in some people due to genetic or developmental factors. It does not indicate any abnormality in the cerebral cortex.

Choice A reason: Diplopia, or double vision, is a symptom of multiple sclerosis that results from damage to the optic nerve or the brainstem. It can affect one or both eyes, and it can cause difficulty with reading, driving, and other activities that require visual coordination.

Choice B reason: Fatigue that worsens with heat is a symptom of multiple sclerosis that occurs due to the impaired transmission of nerve impulses in the central nervous system. Heat can exacerbate this impairment and make the patient feel more tired, weak, and sluggish.

Choice C reason: Muscle weakness, spasticity, tremors are symptoms of multiple sclerosis that result from damage to the motor pathways in the brain and spinal cord. They can affect the patient's mobility, balance, coordination, and speech.

Choice D reason: Orthostatic hypotension, or a sudden drop in blood pressure when standing up, is not a common symptom of multiple sclerosis. It can be caused by other conditions, such as dehydration, anemia, or heart problems.

Choice E reason: Numbness and tingling are symptoms of multiple sclerosis that result from damage to the sensory pathways in the brain and spinal cord. They can affect any part of the body, but they are more common in the limbs, face, and trunk.