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Author Question: The client has experienced a myocardial infarction with damage to the inferior portion of the heart. ... (Read 28 times)

wenmo

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on: Jul 23, 2018
The client has experienced a myocardial infarction with damage to the inferior portion of the heart. Due to this history, the nurse monitors the client for the development of rhythm disturbances that are most directly based upon which factor?
 
  1. The resultant change in blood sugar
  2. Electrolyte disturbances from tissue damage
  3. The automaticity of cardiac cells
  4. Decreased blood flow to the liver

Question 2

The nurse detects an extra heart sound that occurs between heartbeats. How would the nurse document the timing of this sound?
 
  1. Diastolic
  2. Holosystolic
  3. Systolic
  4. Pansystolic


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frankwu0507

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

Correct Answer: 3
Rationale: Each cardiac cell can generate its own electrical impulse. Myocardial infarction interferes with the flow of blood to these cells, and the resultant ischemia makes the cells more irritable and more likely to generate an impulse. These uncontrolled impulses result in rhythm disturbances. While extreme changes in blood sugar, electrolyte disturbances, and liver damage can result in cardiac disturbances, the most likely cause of rhythm disturbance following myocardial infarction is insult to the cells causing them to be irritable.

Answer to Question 2

Correct Answer: 1
Rationale: The period between heartbeats is the time between S2 and the next S1. This period of time is diastole. Systole is the period of time between S1 and S2.


wenmo

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Reply 2 on: Jul 23, 2018
:D TYSM

scikid

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Reply 3 on: Yesterday
Wow, this really help

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