CNRN Neurodegenerative Disorders Nursing 2

Question 1

The Uhthoff phenomenon in multiple sclerosis refers to:

Accepted Answer

Temporary worsening of neurological symptoms with increased body temperature

Answer

The Uhthoff phenomenon is the temporary worsening of MS symptoms that occurs with a rise in body temperature, due to impaired conduction in already-demyelinated nerve fibers.

Question 2

A patient with Parkinson's disease is prescribed carbidopa-levodopa. Which nursing teaching point is MOST important?

Accepted Answer

Avoid taking the medication within 30–60 minutes of a high-protein meal

Answer

High-protein meals compete with levodopa for intestinal absorption and blood-brain barrier transport via large neutral amino acid carriers, reducing therapeutic efficacy.

Question 3

When assessing a patient with ALS for respiratory compromise, which measurement is MOST critical for determining the need for ventilatory support?

Accepted Answer

Forced vital capacity (FVC)

Answer

Forced vital capacity (FVC) is the most sensitive early indicator of respiratory muscle weakness in ALS; an FVC below 50% predicted typically prompts discussion of non-invasive ventilatory support.

Question 4

Which symptom is typically the FIRST neurological manifestation of multiple sclerosis?

Accepted Answer

Optic neuritis causing painful unilateral visual loss

Answer

Optic neuritis, presenting as painful monocular visual loss with color desaturation, is one of the most common initial presentations of MS and often the first demyelinating event.

Question 5

Dementia with Lewy bodies (DLB) is distinguished from Alzheimer's disease primarily by the presence of:

Accepted Answer

Fluctuating cognition with recurrent vivid visual hallucinations and parkinsonism

Answer

DLB is characterized by the triad of fluctuating cognition, vivid recurrent visual hallucinations, and spontaneous parkinsonism — features that distinguish it from Alzheimer's disease.

CNRN Test Practice Test

CNRN Test Practice Test

CNRN Neurodegenerative Disorders Nursing 2