A B-type natriuretic peptide (BNP) sample has been drawn from an older adult patient who has been experiencing vital fatigue and shortness of breath.
What diagnosis will this test allow the care team to investigate?
Heart failure
Pleurisy
Cardiomyopathy
Valve dysfunction
The Correct Answer is A
Choice A rationale:
B-type natriuretic peptide (BNP) is a hormone produced primarily by the ventricles of the heart in response to stretching of the heart muscle fibers. It plays a crucial role in regulating blood volume and pressure by promoting the excretion of sodium and water by the kidneys. Elevated levels of BNP in the blood are strongly suggestive of heart failure, as the heart muscle is working harder to pump blood, leading to increased BNP production.
Key points supporting A as the correct answer:
BNP is a highly sensitive and specific marker for heart failure. Studies have demonstrated its accuracy in diagnosing heart failure, even in early stages when symptoms may be subtle.
The patient's clinical presentation aligns with heart failure. Vital fatigue and shortness of breath are both classic symptoms of heart failure, resulting from the heart's inability to meet the body's demands for oxygenated blood.
Other choices are less likely based on the information provided. Pleurisy (inflammation of the lining of the lungs), cardiomyopathy (disease of the heart muscle), and valve dysfunction can all cause shortness of breath, but they would not typically lead to elevated BNP levels unless heart failure is also present.
Additional considerations:
BNP levels can be influenced by factors other than heart failure, such as age, kidney function, and certain medications. However, in the context of a patient with typical heart failure symptoms, an elevated BNP level strongly supports the diagnosis.
BNP testing is often used to guide treatment decisions in patients with heart failure. Serial BNP measurements can help assess the effectiveness of therapy and monitor for disease progression.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Asking the patient to lift up is not appropriate in this situation. It could disturb the clot that has formed at the puncture site and worsen the bleeding. Additionally, it could cause discomfort or pain to the patient.
It's crucial to prioritize actions that address the bleeding and ensure patient safety.
Choice B rationale:
While assessing the groin site is important to identify the source of bleeding, it's not the priority action.
In a case of significant blood loss, immediate assistance is necessary to control the bleeding and prevent further complications.
Delaying the call for help could compromise the patient's hemodynamic stability and lead to shock.
Choice C rationale:
Obtaining vital signs provides valuable information about the patient's condition, but it should not take precedence over calling for help in a case of active bleeding.
Timely intervention to control the bleeding is crucial to prevent hemodynamic instability and potential shock.
Choice D rationale:
Calling for help is the priority action because it ensures prompt assistance from other healthcare professionals.
This allows for a coordinated response to manage the bleeding effectively, initiate appropriate interventions, and closely monitor the patient's condition.
Early intervention is essential to prevent further blood loss, maintain hemodynamic stability, and optimize patient outcomes.
Correct Answer is C
Explanation
Choice A rationale:
Incorrect. Scarring on the atria is not an indication of procedure failure in the context of the maze procedure. In fact, it's a desired outcome.
Pacemaker implantation: Not routinely indicated after the maze procedure, even if scarring is present. Pacemakers are primarily used to treat bradyarrhythmias (slow heart rhythms), not atrial fibrillation.
Choice B rationale:
Incorrect. Repeating the maze procedure is generally not considered unless there's clear evidence of recurrent atrial fibrillation despite initial scarring. Scarring formation takes time, and premature repeat procedures are often not necessary.
Consulting the care team: While collaboration is essential, consultation specifically for repeating the procedure based solely on scarring would be premature.
Choice C rationale:
Correct. The maze procedure intentionally creates scar tissue within the atria to block abnormal electrical signals that cause atrial fibrillation. Scarring disrupts the pathways that allow these signals to circulate and trigger fibrillation. Therefore, the presence of scarring is a positive finding that suggests the procedure has achieved its intended effect.
Choice D rationale:
Incorrect. Further diagnostic testing is not routinely indicated solely based on the presence of scarring after the maze procedure. Additional testing might be considered if the patient experiences recurrent atrial fibrillation or other concerning symptoms, but scarring itself does not necessitate immediate further investigation.
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