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Author Question: A patient who is scheduled to begin chemotherapy for the treatment of breast cancer is anxious about ... (Read 109 times)

P68T

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on: Jul 23, 2018
A patient who is scheduled to begin chemotherapy for the treatment of breast cancer is anxious about the possibility of experiencing nausea and has asked the nurse multiple questions about the physiology of the phenomenon.
 
  When explaining the physiology of nausea and vomiting, the nurse should include which of the following statements? A) The vomiting center is a cluster of cells in the cerebellum.
  B) The vomiting center sends afferent signals to the chemoreceptor trigger zone (CTZ).
  C) The chemoreceptor trigger zone CTZ is composed of neurons in the fourth ventricle.
  D) The CTZ is located partly within the central nervous system and partly in the peripheral nervous system.

Question 2

A patient who has been prescribed digoxin (Lanoxin) is also taking furosemide (Lasix) 20 mg daily. Which of the following electrolyte imbalances will precipitate the development of digoxin toxicity?
 
  A) Hyperkalemia
  B) Hypokalemia
  C) Hypermagnesemia
  D) Hyponatremia


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vseab

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

C
Feedback:
The CTZ is composed of neurons in the fourth ventricle. The vomiting center is a nucleus of cells in the medulla oblongata. Stimuli are relayed to the vomiting center by afferent signals from the chemoreceptor trigger zone (CTZ).

Answer to Question 2

B
Feedback:
Hypokalemia will contribute to the patient developing digoxin toxicity. Hyperkalemia, hypermagnesemia, and hyponatremia will not contribute to the development of digoxin toxicity.


P68T

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Reply #2 on: Jul 23, 2018
Thanks


vseab

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Reply #3 on: Jul 23, 2018
Welcome :)


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