A nurse is assigned to care for a client on a medical-surgical unit.

Exhibits

Complete the following sentence by using the list of options.
Based on the information provided, the client is likely experiencing

which is caused by

A. Pyridostigmine is primarily used in the treatment of myasthenia gravis, a different autoimmune neuromuscular disorder characterized by weakness of voluntary muscles. It works by inhibiting the

enzyme acetylcholinesterase, which increases the levels of acetylcholine at neuromuscular junctions, thereby improving muscle strength. It is not used for treating multiple sclerosis.
B. Levodopa-carbidopa is commonly used to treat Parkinson’s disease. Levodopa is converted to dopamine in the brain, and carbidopa prevents levodopa from being converted into dopamine before it reaches the brain. This combination helps manage the motor symptoms of Parkinson’s disease. It is not used for multiple sclerosis.
C. Riluzole is used primarily for the treatment of amyotrophic lateral sclerosis (ALS), a neurodegenerative disease affecting motor neurons. It works by reducing the release of glutamate, a neurotransmitter that can be toxic to nerve cells. Riluzole is not used for multiple sclerosis.
D. Interferon-beta is a disease-modifying therapy used in the treatment of multiple sclerosis. It works by modulating the immune system to reduce the frequency and severity of MS relapses. Interferon-beta can help slow the progression of disability and reduce the number of new lesions seen on MRI scans.

A. Estrogen's role in temperature regulation is not as significant as other factors in the context of aging and body temperature maintenance.
B. Increased blood pressure itself does not directly influence the ability to maintain body temperature. While hypertension can have various effects on cardiovascular health, it is not a primary factor in the regulation of body temperature in older adults.
C. Decreased muscle strength and tone are significant factors affecting temperature regulation. Muscle activity generates heat, and a decline in muscle mass and strength can impair the body’s ability to generate and maintain adequate warmth.
D. Decreased subcutaneous fat is a key factor in temperature regulation. Subcutaneous fat acts as an insulator, helping to retain body heat. As people age, they often experience a decrease in subcutaneous fat, which reduces their ability to insulate and maintain body heat effectively.