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
Determining the type of pain is secondary to assessing pain severity.
Choice B rationale
Intravenous opioids are strong and should be considered only after evaluating pain severity.
Choice C rationale
Administering acetaminophen without assessing pain severity first is not appropriate.
Choice D rationale
Asking the patient to rate their pain helps gauge severity, guiding further pain management steps.
Correct Answer is B
Explanation
Choice A rationale
A patient 3 days after surgery may still require higher doses of opioids for pain management, but the duration and intensity of postoperative pain typically decrease over time. This patient may not necessarily require a higher-than-expected dose compared to others.
Choice B rationale
Patients with cancer often experience severe and chronic pain due to the disease itself or its treatments. These patients may develop tolerance to opioids over time, necessitating higher-than-expected doses to achieve adequate pain relief.
Choice C rationale
Hypotension is a contraindication for high doses of opioids, as opioids can cause further blood pressure reduction. This patient would require careful dose adjustment to avoid exacerbating hypotension.
Choice D rationale
Patients with a concussion are at risk of altered mental status and respiratory depression from opioids. Therefore, higher doses are generally avoided to prevent worsening of these conditions.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.