Several nursing students are ordering a poster on the mechanism of the heart.
What structure would they label as separating the right half of the heart from the left?
Auricle.
Syncytia.
Bundle of His.
Septum.
The Correct Answer is D
Choice A rationale
The auricle is an ear-shaped appendage on the surface of the atrium and does not separate the right and left halves of the heart. Its function is to increase the capacity of the atrium, allowing for more blood to be collected and passed to the ventricles.
Choice B rationale
Syncytia refer to a multinucleated cell that can result from the fusion of multiple cells, which is not a structure that separates the right and left sides of the heart. They are typically related to muscle tissue and coordinated contractions.
Choice C rationale
The Bundle of His is a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches. It does not act as a separator between the right and left halves of the heart.
Choice D rationale
The septum is the structure that separates the right and left halves of the heart. It is a robust wall that divides the atria (interatrial septum) and the ventricles (interventricular septum), ensuring the segregation of oxygenated and deoxygenated blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
While maintaining patient confidentiality is crucial, it does not address the immediate medical needs of the patient with chronic renal failure. The primary concern should be addressing the health implications of their condition and ensuring proper care coordination.
Choice B rationale
Administering medications ordered immediately is essential, but it is not the first priority without knowing the patient's current status and medical history. The nurse needs to ensure that the medications prescribed are appropriate for a patient with chronic renal failure.
Choice C rationale
Providing teaching about chronic renal failure is important for long-term management but is not the first priority upon admission. Immediate medical needs and communication with the care team take precedence in this acute care setting.
Choice D rationale
Calling the admitting physician immediately is the first priority. The primary care provider needs to be aware of the patient's diagnosis of chronic renal failure to adjust treatment plans accordingly. Immediate communication ensures that all healthcare professionals are on the same page regarding the patient's care. .
Correct Answer is A
Explanation
Choice A rationale
True, because antitussive agents, which are cough suppressants, can potentially lead to dependence due to their central nervous system effects. This risk is particularly concerning for patients with a history of addiction.
Choice B rationale
False, is incorrect because the potential for addiction does warrant caution when prescribing antitussive agents to patients with a history of addiction. .
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