A nursing student asks the nurse to differentiate the pathology ...

[nevelica]

A nursing student asks the nurse to differentiate the pathology of Alzheimer's disease from that of Parkinson's disease. Which description is correct?
 
  a. Alzheimer's disease involves a possible excess of acetylcholine and neuritic plaques.
  b. Alzheimer's disease is caused by decreased amounts of dopamine and degeneration of cholinergic neurons.
  c. Parkinson's disease is characterized by an imbalance of dopamine and acetylcholine.
  d. Parkinson's disease involves increased dopamine production and decreased acetylcholine.

Question 2

A pregnant woman who is in labor has a blood pressure of 189/110 mm Hg and exhibits muscle contractions followed by jerking of her arms and legs. The nurse will prepare to administer which medication to this patient?
 
  a. Carbamazepine (Tegretol)
  b. Diazepam (Valium)
  c. Magnesium sulfate
  d. Phenobarbital (Luminal)

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Answer to Question 1

ANS: C
Parkinson's disease (PD) is characterized by an imbalance of dopamine (DA) and acetylcholine (ACh) caused by an unexplained degeneration of the dopaminergic neurons allowing the excitatory response of acetylcholine to exceed the inhibitory response of dopamine. Alzheimer's disease (AD) may result from decreased ACh, degeneration of cholinergic neurons, and neuritic plaques. Dopamine does not appear to play a role in Alzheimer's disease.

Answer to Question 2

ANS: C
Magnesium sulfate is used to control seizures during eclampsia.

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