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Which medication is commonly used in the treatment of multiple sclerosis?

A.

Pyridostigmine

B.

Levodopa-carbidopa

C.

Riluzole

D.

Interferon-beta

Answer and Explanation

The Correct Answer is D

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.
 


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Related Questions

Correct Answer is D

Explanation

A. This statement is relevant to the patient's health but does not indicate a need for further action by the nurse. Omeprazole is a common medication for acid reflux.
B. This statement is appropriate for patients with asthma. Fluticasone is a maintenance inhaler used to prevent asthma attacks, and taking it regularly as prescribed is important.
C. This statement is correct. Albuterol is a quick-relief inhaler used to treat asthma attacks.
D. This statement indicates a potential interaction with the patient's asthma medications. Beta-blockers like metoprolol can worsen asthma symptoms in some patients. The nurse should discuss this with the patient's doctor to determine if the benefits of metoprolol outweigh the risks for this individual.

Correct Answer is D

Explanation

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.

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