Understanding Lab Tests for Pulmonary Hypertension
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Pulmonary hypertension (PH) is a condition characterized by high blood pressure in the arteries of the lungs. While the definitive diagnosis typically requires specialized imaging and heart catheterization, blood tests play a fundamental role in assessing the heart's response to this condition and monitoring for complications.
Recommended Test
B-Type Natriuretic Peptide (BNP)
This test measures BNP, a hormone released by the heart when it's under stress. In pulmonary hypertension, elevated BNP levels indicate that the heart is working harder to pump blood against the increased pressure in the lung arteries. Monitoring BNP levels helps assess disease severity and treatment response.
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The Role of Blood Testing in Pulmonary Hypertension
Although there isn't a single blood test to diagnose pulmonary hypertension itself, lab testing is essential for evaluating how the condition affects the heart. When pulmonary arteries have increased pressure, the heart must work harder to pump blood through the lungs, leading to measurable changes in certain blood markers.
Understanding Your Results
Elevated BNP levels in the context of pulmonary hypertension reflect the increased workload on the heart's right side, which pumps blood to the lungs. This marker is valuable for monitoring disease progression and evaluating how well treatments are working to reduce the strain on your heart.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment.
