Which of the following tests is crucial for diagnosing Cor Pulmonale?

The crucial test for diagnosing Cor Pulmonale is hemodynamics. Cor Pulmonale, which refers to the alteration in the structure and function of the right ventricle caused by respiratory disorders, can be effectively assessed through hemodynamic monitoring. This typically involves measuring pressures within the heart and pulmonary circulation, such as pulmonary artery pressure, which can indicate whether the right ventricle is under stress due to increased resistance in the lungs. Elevated pulmonary arterial pressures are a hallmark of Cor Pulmonale, and hemodynamic data provide critical information regarding the heart's performance and any potential failure associated with lung pathology.

While chest X-rays and arterial blood gas (ABG) analysis may assist in evaluating related respiratory conditions or general heart function, they do not specifically diagnose Cor Pulmonale. A chest X-ray may show right ventricular enlargement or pulmonary vascular changes, but these findings are not definitive for diagnosing Cor Pulmonale. Similarly, ABG analysis can reveal hypoxemia or respiratory acidosis, which may accompany conditions leading to Cor Pulmonale but do not provide the direct hemodynamic information necessary for diagnosis. Complete blood count can help identify anemia or infection but lacks the specificity required for diagnosing Cor Pulmonale. Thus, the hemod