A nurse is teaching a cardiac patient about the ability of the ...

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A nurse is teaching a cardiac patient about the ability of the heart to generate an electrical impulse. Which of the following teaching points should the nurse convey to the patient?
 
  A) There are many different parts of your heart that can initiate an electrical impulse.
  B) Electrical signals travel along the blood vessels that provide oxygen to your heart.
  C) Your heart depends on your brainstem to initiate electrical signals.
  D) The lining of your left ventricle is the site where electrical signals usually originate.

Question 2

An obese patient who has an elevated triglyceride level and reduced high-density lipoprotein cholesterol is seen by her primary care physician. What do these data suggest in this patient?
 
  A) The development of arthritic syndrome
  B) The development of metabolic syndrome
  C) The development of Reye's syndrome
  D) The development of Tay-Sachs disease

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Answer to Question 1

A
Feedback:
Any part of the conduction system can spontaneously start an impulse, but the sinoatrial (SA) node normally has the fastest rate of automaticity and therefore the faster rate of spontaneous impulse formation. The SA node is located in the right atrium. The brain does not initiate the electrical signal. Conduction does not exclusively follow blood vessels.

Answer to Question 2

B
Feedback:
Metabolic syndrome is noted when the patient has elevated waist circumference, elevated triglycerides, reduced high-density lipoprotein cholesterol, elevated blood pressure, and elevated fasting glucose. Elevated triglyceride level and reduced high-density lipoprotein cholesterol are not indicative of arthritic syndrome. Reye's syndrome is marked by acute encephalopathy and seen in children under the age of 15 years after an acute viral infection. Tay-Sachs is a genetic disease characterized by neurological deterioration in the first year of life.

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TYSM

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