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Author Question: The nurse assumes care of a patient who has myasthenia gravis and notes that a dose of neostigmine ... (Read 43 times)

elizabeth18

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on: Jul 23, 2018
The nurse assumes care of a patient who has myasthenia gravis and notes that a dose of neostigmine (Prostigmin) due 1 hour prior was not given. The nurse will anticipate the patient to exhibit which symptoms?
 
  a. Excessive salivation
  b. Muscle spasms
  c. Muscle weakness
  d. Respiratory paralysis

Question 2

A 40-year-old woman is diagnosed with myasthenia gravis, and her provider recommends removal of her thymus gland. She asks the nurse why this would be helpful. The nurse will explain that removal of the thymus gland may
 
  a. increase binding of acetylcholine (ACh) molecules to ACh receptors.
  b. increase the amount of ACh available at neuromuscular junction sites.
  c. reduce the number of acetylcholine receptor sites.
  d. reduce the autoimmune destruction of ACh receptor sites.


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Galvarado142

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Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: C
Neostigmine must be given on time to prevent myasthenic crisis, which is characterized by generalized, severe muscle weakness. The other symptoms are characteristic of cholinergic crisis, caused by too much medication.

Answer to Question 2

ANS: D
Myasthenia gravis is an autoimmune disorder involving an antibody response against a subunit of the ACh receptor site. Since the thymus is involved in systemic immunity, it is thought that removing the thymus can inhibit this process. It does not increase binding of ACh molecules to receptors or increase the amount of ACh or reduce the number of ACh receptor sites.


elizabeth18

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Reply #2 on: Jul 23, 2018
Both answers were spot on, thank you once again


Galvarado142

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Reply #3 on: Jul 23, 2018
Great! Please up vote :D


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