Pulmonary Artery — ECG/EKG Terminology

Definition: Artery carrying oxygen-poor blood from the heart to the lungs.

Key Facts

• Carries deoxygenated blood from right ventricle to lungs.
• Pulmonary vascular resistance determines right ventricular afterload.
• Obstruction can acutely strain the right ventricle.

ECG Connection: Acute pulmonary vascular stress may produce sinus tachycardia, right-axis deviation, or strain patterns.

Why It Matters: Unexpected right-heart strain on telemetry warrants prompt clinical correlation.