Free BCEN Certified Flight Registered Nurse (CFRN) Practice Question
A patient with myasthenia gravis is experiencing worsening muscle weakness. Which neurotransmitter's receptor is most commonly affected in this condition?
In myasthenia gravis, the body's immune system produces antibodies that block or destroy many of the muscle receptor sites for acetylcholine, a neurotransmitter. This reduces the ability of muscles to respond to nerve signals, causing muscle weakness. Other neurotransmitters like dopamine and serotonin are not primarily involved in this condition.
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What is acetylcholine and what role does it play in muscle contraction?
How do antibodies interfere with acetylcholine receptors in myasthenia gravis?
What are some symptoms of myasthenia gravis besides muscle weakness?
This question's topic:
BCEN Certified Flight Registered Nurse (CFRN) /
Medical Emergencies
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