1 Why the test is used: Between 75% and 90% of people with lupus have a positive anti-dsDNA test. 2  Also, the test is very specific for lupus. 3  Therefore, a positive test can be useful in confirming a diagnosis. 4  For many people, the titer, or level, of the antibodies rises as the disease becomes more active.
The zone below ground where the pore spaces are filled with ground water is called the saturated zone. Above the saturated zone, where the pore spaces are not filled with ground water, is the unsaturated zone. The water table marks the boundary between the saturated and unsaturated zone. The water table intersects Earth's surface at rivers and at lakes.
A water table â sometimes also referred to as a groundwater table â is the upper level of accumulated water that has collected on the saturated or impermeable surface below it. Groundwater tends to level out just like the water in your bath or swimming pool.hile the water table below your home may be several meters below your foundation, that doesnât mean that it wonât cause water problems in your basement. Below explains what a water table is and how it can effect your home.