A nurse is reinforcing teaching with a client who has a new diagnosis of myasthenia gravis (MG) and a prescription for neostigmine. Which of the following information should the nurse include about the action of the medication?
Improves muscle strength.
Destroys the antibodies that cause MG
Enhances immune system function
Prevents excessive coughing
The Correct Answer is A
a. Improves muscle strength.
Explanation:
Neostigmine is a medication used in the treatment of myasthenia gravis (MG). It belongs to a class of drugs called cholinesterase inhibitors. Neostigmine works by inhibiting the breakdown of acetylcholine, a neurotransmiter involved in muscle contraction. In MG, there is a decrease in the amount of acetylcholine available at the neuromuscular junction, leading to muscle weakness and fatigue.
By inhibiting the breakdown of acetylcholine, neostigmine helps to increase the concentration of acetylcholine at the neuromuscular junction. This, in turn, improves muscle strength and can alleviate the symptoms of weakness and fatigue associated with MG.
Option b, destroying the antibodies that cause MG, is not accurate. Myasthenia gravis is an autoimmune disorder characterized by the presence of antibodies that interfere with neuromuscular transmission.
Neostigmine does not directly target or eliminate these antibodies.
Option c, enhancing immune system function, is not accurate either. Neostigmine primarily acts on the neuromuscular junction to improve muscle strength and does not have a direct effect on immune system function.
Option d, preventing excessive coughing, is not the primary action of neostigmine. While increased muscle strength may indirectly improve respiratory function and reduce coughing in individuals with myasthenia gravis, it is not the primary indication or action of neostigmine.
Therefore, the most accurate information to include in teaching about neostigmine for a client with myasthenia gravis is that it improves muscle strength.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Place the client in a quiet environment.
- A. Limiting suctioning the client's airway to 30 seconds at a time can reduce intracranial pressure by minimizing hypoxia and hypercarbia, which can cause cerebral vasodilation and increased cerebral blood volume. However, this intervention alone is not sufficient to prevent increased intracranial pressure, and suctioning should be done only when necessary and with caution. Therefore, this choice is partially correct but not the best answer.
- B. Grouping several nursing activities to be completed at one time can increase intracranial pressure by stimulating the client and causing fluctuations in blood pressure and heart rate.Therefore, this choice is incorrect.
- C. Flexing the client's neck forward can increase intracranial pressure by impeding venous drainage from the brain and increasing cerebral blood volume. Therefore, this choice is incorrect.
- D. Placing the client in a quiet environment can reduce intracranial pressure by minimizing sensory stimulation and promoting relaxation, which can lower blood pressure and heart rate and decrease cerebral metabolic demand. Therefore, this choice is correct and the best answer.
Correct Answer is C
Explanation
Choice A rationale:
A child who has mononucleosis and reports severe fatigue requires medical attention, but this condition does not pose an immediate life-threatening risk compared to acute epiglottitis. Mononucleosis is a viral infection that can cause fatigue, sore throat, and swollen lymph nodes. While the child should be assessed, the priority is given to the child with acute epiglottitis due to the potential for airway obstruction and respiratory distress.
Choice B rationale:
A child who has Wilms' tumor and an abdominal mass also needs urgent medical evaluation. Wilms' tumor is a rare kidney cancer that primarily affects children. While it requires prompt attention, acute epiglottitis poses a more immediate threat to the airway and breathing.
Choice C rationale:
A child with acute epiglottitis and drooling requires immediate assessment and intervention. Acute epiglottitis is a potentially life-threatening infection that can cause severe swelling of the epiglottis, leading to airway obstruction. The child may have difficulty breathing and may present with the classic drooling sign due to the inability to swallow saliva. Prompt medical intervention, including airway management and appropriate antibiotics, is essential in this situation.
Choice D rationale:
A child with a urinary tract infection and bright red blood in her urine requires medical evaluation, but this condition is not as urgent as acute epiglottitis. Hematuria (blood in the urine) can have various causes, including urinary tract infections or kidney stones. While the child should receive medical attention, it does not take precedence over the immediate threat posed by acute epiglottitis, which requires urgent intervention to maintain the airway.
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