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Author Question: A client is constipated and trying to have a bowel movement. How does holding the breath and pushing ... (Read 74 times)

Destiiny22

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on: Jul 23, 2018
A client is constipated and trying to have a bowel movement. How does holding the breath and pushing down (the Valsalva maneuver) affect the pulse?
 
  A) Left ventricle pumps more forcefully; pulse is stronger
  B) Stimulates the vagus nerve to increase the rate
  C) Stimulates the vagus nerve to decrease the rate
  D) Right ventricle is less efficient; pulse is thready

Question 2

What anatomic site regulates the pulse rate and force?
 
  A) Thermoregulatory center
  B) Cardiac sinoatrial node
  C) Cardiac atria and valves
  D) Peripheral chemoreceptors


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Danny Ewald

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

Ans: C
Parasympathetic stimulation via the vagus nerve decreases the heart rate. The Valsalva maneuver stimulates the vagus nerve, resulting in a slower pulse rate.

Answer to Question 2

Ans: B
The pulse is regulated by the autonomic nervous system through the cardiac sinoatrial node. The other anatomic sites may affect, but do not regulate, the pulse rate and force.


Destiiny22

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Reply 2 on: Jul 23, 2018
Thanks for the timely response, appreciate it

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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