Yes, a blood test can be used to detect scleroderma. The test looks for certain markers that may indicate the presence of scleroderma. These markers can include antinuclear antibodies (ANA), anti-Scl-70 antibodies, and anti-centromere antibodies. ANA is a protein that is produced by the body in response to an infection, and it can be used to detect autoimmune diseases like scleroderma. Anti-Scl-70 antibodies are also produced by the body in response to an infection, and they can be used to detect the presence of scleroderma. Finally, anti-centromere antibodies are proteins that are produced by the body in response to scleroderma, and they can be used to detect the presence of the disease.
In addition to a blood test, a doctor may also perform a physical examination to look for signs of scleroderma. These signs may include skin thickening, joint swelling, and Raynaud's phenomenon, which causes the fingers and toes to turn white or blue in response to cold temperatures or stress.
Overall, a blood test can be used to detect scleroderma, but a doctor may also use a physical examination to look for additional signs of the disease.