The ACE (Angiotensin Converting Enzyme) test is a specialized blood diagnostic tool used primarily to help diagnose and monitor Sarcoidosis, a systemic disorder that causes small clumps of inflammatory cells (granulomas) to form in the organs. This test measures the level of ACE enzyme in the blood, which is often elevated in patients with active sarcoidosis, particularly when it affects the lungs. ​Why should you take this test? ​Sarcoidosis Screening: To help confirm a diagnosis when symptoms like persistent cough, shortness of breath, or fatigue are present. ​Treatment Monitoring: To track the effectiveness of treatment for patients already diagnosed with sarcoidosis. ​Differential Diagnosis: To rule out other conditions that cause similar symptoms, such as tuberculosis or fungal infections. ​Nervous System Check: Sometimes used to evaluate cases of neurosarcoidosis where the nervous system may be involved. ​Test Specifications: ​Sample Type: Blood (Serum) ​Preparation: No fasting required; however, individuals under 18 may have higher natural levels, and certain medications like steroids can affect results. ​Reporting: High-precision quantitative results delivered within 24–48 hours.