What part of the ECG would you look for atrial depolarization?
Pwave.
Twave.
QRS complex.
ST Segment.
The Correct Answer is A
Choice A rationale:
The P wave on an ECG represents atrial depolarization, which is when the atria contract.
Choice B rationale:
The T wave represents ventricular repolarization, which is when the ventricles relax.
Choice C rationale:
The QRS complex represents ventricular depolarization, which is when the ventricles contract.
Choice D rationale:
The ST segment represents the period when the ventricles are depolarized.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A rationale:
Smoking is a modifiable risk factor for heart disease. Quitting smoking can significantly reduce the risk of heart disease.
Choice B rationale:
Exercise is a modifiable risk factor for heart disease. Regular physical activity can help lower the risk of heart disease.
Choice C rationale:
Family history is a non-modifiable risk factor for heart disease. You can’t change your family history.
Choice D rationale:
Diet is a modifiable risk factor for heart disease. Eating a healthy diet can help lower the risk of heart disease.
Choice E rationale:
Age is a non-modifiable risk factor for heart disease. You can’t change your age.
Correct Answer is A
Explanation
Choice A rationale:
Saturated fats increase blood cholesterol levels, which can lead to atherosclerosis and heart disease.
Choice B rationale:
The need for hydrogenation is not a reason to avoid saturated fats. Hydrogenation is a process that turns unsaturated fats into saturated fats.
Choice C rationale:
Saturated fats do not interfere with metabolism in a way that would be a reason to avoid them.
Choice D rationale:
Saturated fats do not block the absorption of nutrients. They are themselves a source of dietary energy.
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