Mixed connective tissue disease can lead to serious complications, including: High blood pressure in the lungs (pulmonary hypertension). This condition is the main cause of death in people with mixed connective tissue disease. Interstitial lung disease.How is MCTD diagnosed?
As other symptoms develop over the years, the person may then be diagnosed with MCTD. If MCTD is suspected, a blood test can be done in which the doctor is looking for an antibody called U1-RNP to confirm the diagnosis.What is MCTD diagnosis?
Diagnosing MCTD can be difficult because the symptoms of the three diseases usually occur one after another over an extended period. Your doctor will likely check for swollen hands and joints and perform a blood test. The blood test may reveal a certain antibody in the blood that forms in response to the presence of mixed connective tissue disease.