Pulmonary atresia is a condition where the pulmonary valve is completely closed off, which restricts the normal blood flow to the lungs. It is a serious congenital heart defect that requires prompt medical intervention to prevent long-term complications. Synonyms for pulmonary atresia include pulmonic atresia, congenital absence of the pulmonary valve, and pulmonary valve atresia. These terms are often used interchangeably in medical literature to describe the same underlying condition. Other related terms may include cardiac anomalies, ventricular dysfunction, and hypoplastic right heart syndrome. Timely diagnosis and treatment are imperative to mitigate the effects of this condition and improve outcomes for affected individuals.