A nurse reviews laboratory results for a patient with suspected pulmonary hypertension. Which finding is most… - NCL (Northern Coalfields Limited)-NO

NCL (Northern Coalfields Limited)-NO

Medical Surgical Nursing

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Explanation

Pulmonary hypertension (PH) is defined by high pressure in the pulmonary arteries, which increases the afterload (resistance) the right ventricle must pump against.
To overcome this resistance, the right ventricle must generate a higher pressure during contraction, leading to an elevated right ventricular systolic pressure (RVSP).
This elevated RVSP is a direct hemodynamic consequence of PH and is a key diagnostic marker, typically estimated non-invasively via echocardiography.
As PH progresses, the right ventricle may hypertrophy (thicken) and dilate due to the chronic pressure overload.

Option A: A reduced glomerular filtration rate (GFR) is a measure of kidney function. It is not a primary diagnostic indicator for pulmonary hypertension.
Option C: A decreased white blood cell count (leukopenia) and fever are classic signs of an infection or an issue with the immune system, not pulmonary hypertension.
Option D: This combination describes type 2 (hypercapnic) respiratory failure. While hypoxemia (low oxygen) can occur in severe PH due to impaired gas exchange, significant hypercapnia (high carbon dioxide) is not a typical feature.

Visual 1: Diagram: Illustration of the heart and pulmonary circulation, showing the increased pressure in the pulmonary artery and the resulting hypertrophy and increased pressure in the right ventricle in a patient with pulmonary hypertension.
Visual 2: Flowchart: Diagnostic pathway for pulmonary hypertension, starting with clinical suspicion, moving to echocardiography to estimate RVSP, and confirming with right heart catheterization.
Visual 3: Infographic: Comparison of normal pulmonary artery pressure and right ventricular pressure versus the elevated pressures seen in pulmonary hypertension.

Clinical Relevance

Nursing practice connection: Use the key finding related to Diagnostic findings of Pulmonary Hypertension to guide bedside assessment, documentation, and the next nursing action.
Nurses play a crucial role in identifying patients at risk for PH and recognizing key signs. An elevated RVSP on an echocardiogram report is a critical finding that warrants prompt communication with the healthcare team for further evaluation.
Early diagnosis and treatment of pulmonary hypertension are vital to slow disease progression, manage symptoms, and prevent the development of irreversible right heart failure, which has a poor prognosis.
Patient education is essential. Nurses should teach patients about the importance of medication adherence, symptom monitoring (e.g., worsening shortness of breath, edema, fatigue), and lifestyle modifications.

How to Approach the Question

First, identify the core concept of the question, which is pulmonary hypertension (PH).
The question asks for the 'most consistent' finding. This requires understanding the direct pathophysiology of the disease.
Recall that PH is fundamentally a disease of high pressure in the pulmonary arteries.
Think about the direct consequence of this high pressure: the right ventricle must work harder and generate a higher pressure to pump blood into the lungs.
Evaluate each option based on this core mechanism:
Reduced GFR is a kidney issue, a potential downstream effect, not a direct one.

Concept Tested & Keywords

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