Top 10 facts about the world. Hand atrophy is a condition that causes muscles of the hand deteriorate and wither away. Also called muscle wasting, hand atrophy leads the muscles to begin to lose their bulk and strength. This in turn may cause a general decrease in the ability of the hand to move.
Why the test is used: Between 75% and 90% of people with lupus have a positive anti-dsDNA test. Also, the test is very specific for lupus. Therefore, a positive test can be useful in confirming a diagnosis. For many people, the titer, or level, of the antibodies rises as the disease becomes more active.
1 Results may indicate you have anemia, which commonly occurs in lupus. A low white blood cell or platelet count may occur in lupus as well.  Erythrocyte sedimentation rate. This blood test determines the rate at which red blood cells settle to the bottom of a tube in an hour.